if __name__ == "__main__":
    from calculator_1 import add, sub, mul, div
    import sys

    if len(sys.argv) is not 4:
        print('Usage: ./100-my_calculator.py <a> <operator> <b>')
        sys.exit(1)

    elif (sys.argv[2] is not "+"\
         and sys.argv[2] is not "-"\
         and sys.argv[2] is not "*"\
         and sys.argv[2] is not "/"):
        print('Unknown operator. Available operators: +, -, * and /')
        sys.exit(1)

    elif sys.argv[2] == '+':
        print("{} + {} = {}".format(sys.argv[1], sys.argv[3],
                                    add(int(sys.argv[1]), int(sys.argv[3]))))

    elif sys.argv[2] == '-':
        print("{} - {} = {}".format(sys.argv[1], sys.argv[3],
                                    sub(int(sys.argv[1]), int(sys.argv[3]))))

    elif sys.argv[2] == '*':
        print("{} * {} = {}".format(sys.argv[1], sys.argv[3],
                                    mul(int(sys.argv[1]), int(sys.argv[3]))))

    elif sys.argv[2] == '/':
        print("{} / {} = {}".format(sys.argv[1], sys.argv[3],
                                    div(int(sys.argv[1]), int(sys.argv[3]))))
Beispiel #2
0
#!/usr/bin/python3
if __name__ == "__main__":
    from calculator_1 import add, sub, mul, div
    from sys import argv
    argsCount = len(argv)
    if argsCount != 4:
        print("Usage: {} <a> <operator> <b>" .format(argv[0]))
        exit(1)
    flag = 0
    lista = ['-', '+', '*', '/']
    a = int(argv[1])
    b = int(argv[3])
    for i in range(0, 4):
        if argv[2] == lista[i]:
            flag = 1
    if flag != 1:
        print("Unknown operator. Available operators: +, -, * and /")
        exit(1)
    if argv[2] == '+':
        print("{} {} {} = {}" .format(argv[1], argv[2], argv[3], add(a, b)))
    elif argv[2] == '-':
        print("{} {} {} = {}" .format(argv[1], argv[2], argv[3], sub(a, b)))
    elif argv[2] == '/':
        print("{} {} {} = {}" .format(argv[1], argv[2], argv[3], div(a, b)))
    else:
        print("{} {} {} = {}" .format(argv[1], argv[2], argv[3], mul(a, b)))
#!/usr/bin/python3
from calculator_1 import add, sub, mul, div
from sys import argv, exit
if __name__ == "__main__":
    if len(argv) != 4:
        print('Usage: ./100-my_calculator.py <a> <operator> <b>')
        exit(1)
    else:
        a = int(argv[1])
        b = int(argv[3])
        if argv[2] == "+":
            print('{:d} + {:d} = {:d}'.format(a, b, add(a, b)))
        elif argv[2] == '-':
            print('{:d} - {:d} = {:d}'.format(a, b, sub(a, b)))
        elif argv[2] == '*':
            print('{:d} * {:d} = {:d}'.format(a, b, mul(a, b)))
        elif argv[2] == '/':
            print('{:d} / {:d} = {:d}'.format(a, b, div(a, b)))
        else:
            print('Unknown operator. Available operators: +, -, * and /')
            exit(1)
#!/usr/bin/python3
if __name__ == "__main__":
    from sys import argv
    from calculator_1 import add, sub, mul, div

    if len(argv) != 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)
    a = int(argv[1])
    b = int(argv[3])
    operator = argv[2]
    if operator == "+":
        print("{} {} {} = {}".format(a, operator, b, add(a, b)))
    elif operator == '-':
        print("{} {} {} = {}".format(a, operator, b, sub(a, b)))
    elif operator == "*":
        print("{} {:s} {} = {}".format(a, operator, b, mul(a, b)))
    elif operator == '/':
        print("{} {} {} = {}".format(a, operator, b, div(a, b)))
    else:
        print("Unknown operator. Available operators: +, -, * and /")
        exit(1)
Beispiel #5
0
#!/usr/bin/python3
if __name__ == "__main__":
    from calculator_1 import add, sub, mul, div
    from sys import argv
    l = len(argv)
    if l != 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)
    else:
        a = int(argv[1])
        b = int(argv[3])
    if argv[2] == "+":
        print("{} + {} = {}".format(a, b, add(a, b)))
    elif argv[2] == "-":
        print("{} - {} = {}".format(a, b, sub(a, b)))
    elif argv[2] == "*":
        print("{} * {} = {}".format(a, b, mul(a, b)))
    elif argv[2] == "/":
        print("{} / {} = {}".format(a, b, div(a, b)))
    else:
        print("Unknown operator. Available operators: +, -, * and /")
        exit(1)
#!/usr/bin/python3
if __name__ == "__main__":
    from calculator_1 import add, sub, mul, div
    import sys
argv = sys.argv
len = len(argv)

if len != 4:
    print("Usage: ./100-my_calculator.py <a> <operator> <b>")
    sys.exit(1)
a = int(argv[1])
b = int(argv[3])
op = argv[2]
if op != "+" and op != "-" and op != "*" and op != "/":
    print("Unknown operator. Available operators: +, -, * and /")
    sys.exit(1)
if op == "+":
    print("{:d} {:s} {:d} = {:d}".format(a, op, b, add(a, b)))
if op == "-":
    print("{:d} {:s} {:d} = {:d}".format(a, op, b, sub(a, b)))
if op == "*":
    print("{:d} {:s} {:d} = {:d}".format(a, op, b, mul(a, b)))
if op == "/":
    print("{:d} {:s} {:d} = {:d}".format(a, op, b, div(a, b)))
#!/usr/bin/python3
if __name__ == '__main__':
    from calculator_1 import add, sub, mul, div
    import sys
    ar = sys.argv
    lenAv = len(sys.argv)
    if lenAv != 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        sys.exit(1)
    if ar[2] != '+' and ar[2] != '-' and ar[2] != '*' and ar[2] != '/':
        print("Unknown operator. Available operators: +, -, * and /")
        sys.exit(1)
    a = int(ar[1])
    b = int(ar[3])
    if ar[2] == '+':
        print(a, ar[2], b, "=", add(a, b))
    if ar[2] == '-':
        print(a, ar[2], b, "=", sub(a, b))
    if ar[2] == '*':
        print(a, ar[2], b, "=", mul(a, b))
    if ar[2] == '/':
        print(a, ar[2], b, "=", div(a, b))
#!/usr/bin/python3
if __name__ == "__main__":
    import sys
    from calculator_1 import add, sub, mul, div
    if len(sys.argv) != 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)

    op = "+-*/"
    if sys.argv[2] not in op:
        print("Unknown operator. Available operators: +, -, * and /")
        exit(1)
    print("{} {} {} = ".format(sys.argv[1], sys.argv[2], sys.argv[3]), end="")
    ope = sys.argv[2]
    a = int(sys.argv[1])
    b = int(sys.argv[3])
    if ope == '+':
        print("{}".format(add(a, b)))
    elif ope == '-':
        print("{}".format(sub(a, b)))
    elif ope == '*':
        print("{}".format(mul(a, b)))
    else:
        print("{}".format(div(a, b)))
#!/usr/bin/python3
if __name__ == "__main__":
    import sys
    argv = sys.argv
    from calculator_1 import add, sub, mul, div
    l = len(argv)
    if l != 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        sys.exit(1)
    if argv[2] not in "+-*/":
        print("Unknown operator. Available operators: +, -, * and /")
        sys.exit(1)
    a = int(argv[1])
    b = int(argv[3])
    if argv[2] == "+":
        print("{} {} {} = {}".format(a, argv[2], b, add(a, b)))
    elif argv[2] == "-":
        print("{} {} {} = {}".format(a, argv[2], b, sub(a, b)))
    elif argv[2] == "*":
        print("{} {} {} = {}".format(a, argv[2], b, mul(a, b)))
    else:
        print("{} {} {} = {}".format(a, argv[2], b, div(a, b)))
Beispiel #10
0
#!/usr/bin/python3
if __name__ == "__main__":
    from calculator_1 import add, sub, mul, div
    a = 10
    b = 5
    print("{0:d} + {1:d} = {2:d}".format(a, b, add(a, b)))
    print("{0:d} - {1:d} = {2:d}".format(a, b, sub(a, b)))
    print("{0:d} * {1:d} = {2:d}".format(a, b, mul(a, b)))
    print("{0:d} / {1:d} = {2:d}".format(a, b, div(a, b)))
Beispiel #11
0
#!/usr/bin/python3
from calculator_1 import add, sub, mul, div
from sys import argv, exit
if __name__ == "__main__":
    if len(argv) != 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)
    if argv[2] != "+" and argv[2] != "-" and argv[2] != "*" and argv[2] != "/":
        print("Unknown operator. Available operators: +, -, * and /")
        exit(1)
    a = int(argv[1])
    b = int(argv[3])
    if argv[2] == "+":
        calc = add(a, b)
    if argv[2] == "-":
        calc = sub(a, b)
    if argv[2] == "*":
        calc = mul(a, b)
    if argv[2] == "/":
        calc = div(a, b)
    print("{} {} {} = {}".format(a, argv[2], b, calc))
    import sys
    import calculator_1
    str1 = "Usage: ./100-my_calculator.py <a> <operator> <b>"
    str2 = "Unknown operator. Available operators: +, -, * and /"
    num = (len(sys.argv))

    if num != 4:
        print("{}".format(str1))
        exit(1)

    if sys.argv[2] not in "+-*/":
        print("{}".format(str2))
        exit(1)

    a = int(sys.argv[1])
    b = int(sys.argv[3])

    if sys.argv[2] == "+":
        result = calculator_1.add(a, b)

    if sys.argv[2] == "-":
        result = calculator_1.sub(a, b)

    if sys.argv[2] == "*":
        result = calculator_1.mul(a, b)

    if sys.argv[2] == "/":
        result = calculator_1.div(a, b)

    print("{:d} {} {:d} = {:d}".format(a, sys.argv[2], b, result))
#!/usr/bin/python3
if __name__ == "__main__":
    from sys import argv
    import calculator_1 as cal
    if (len(argv) != 4):
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)
    else:
        a = int(argv[1])
        b = int(argv[3])
        if (argv[2] not in ('+', '-', '*', '/')):
            print("Unknown operator. Available operators: +, -, * and /")
            exit(1)
        elif (argv[2] == '+'):
            print("{:d} + {:d} = {:d}".format(a, b, cal.add(a, b)))
        elif (argv[2] == '-'):
            print("{:d} - {:d} = {:d}".format(a, b, cal.sub(a, b)))
        elif (argv[2] == "*"):
            print("{:d} * {:d} = {:d}".format(a, b, cal.mul(a, b)))
        elif (argv[2] == '/'):
            print("{:d} / {:d} = {:d}".format(a, b, cal.div(a, b)))
Beispiel #14
0
#!/usr/bin/python3
from calculator_1 import add, sub, mul, div
from sys import argv
if __name__ == "__main__":
    l = len(argv)
    if l != 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)
    op = argv[2]
    if op != '-' and op != '+' and op != '*' and op != '/':
        print("Unknown operator. Available operators: +, -, * and /")
        exit(1)
    a = int(argv[1])
    b = int(argv[3])
    if op == '+':
        print("{} {} {} = {}".format(a, op, b, add(a, b)))
    elif op == '-':
        print("{} {} {} = {}".format(a, op, b, sub(a, b)))
    elif op == '/':
        print("{} {} {} = {}".format(a, op, b, div(a, b)))
    else:
        print("{} {} {} = {}".format(a, op, b, mul(a, b)))
#!/usr/bin/python3
if __name__ == '__main__':
    from calculator_1 import add, sub, mul, div
    from sys import argv, exit
    operator = '+', '-', '*', '/'
    argc = len(argv)

    if argc is not 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)
    elif argv[2] not in operator:
        print("Unknown operator. Available operators: +, -, * and /")
        exit(1)

    a = int(argv[1])
    b = int(argv[3])
    operator = argv[2]
    if operator == '+':
        print(a, operator, b, '=', add(a, b))
    elif operator == '-':
        print("{} - {} = {}".format(a, b, sub(a, b)))
    elif operator == '*':
        print("{} * {} = {}".format(a, b, mul(a, b)))
    elif operator == '/':
        print("{} / {} = {}".format(a, b, div(a, b)))
Beispiel #16
0
#!/usr/bin/python3
if __name__ == "__main__":
    from sys import argv
    from calculator_1 import add, sub, mul, div
    length = len(argv)
    if length != 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)
    else:
        a = int(argv[1])
        b = int(argv[3])
        if argv[2] == '+':
            print("{} + {} = {}".
                  format(a, b, add(a, b)))
        elif argv[2] == '-':
            print("{} - {} = {}".
                  format(a, b, sub(a, b)))
        elif argv[2] == '*':
            print("{} * {} = {}".
                  format(a, b, mul(a, b)))
        elif argv[2] == '/':
            print("{} / {} = {}".
                  format(a, b, div(a, b)))
        else:
            print("Unknown operator. Available operators: +, -, * and /")
            exit(1)
#!/usr/bin/python3
if __name__ == "__main__":
    from calculator_1 import add, sub, mul, div
    import sys
    if len(sys.argv) != 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)
    else:
        a = int(sys.argv[1])
        b = int(sys.argv[3])
        c = add(a, b)
        d = sub(a, b)
        e = mul(a, b)
        f = div(a, b)
        if sys.argv[2] == "+":
            print("{} + {} = {}".format(a, b, c))
        elif sys.argv[2] == "-":
            print("{} - {} = {}".format(a, b, d))
        elif sys.argv[2] == "*":
            print("{} * {} = {}".format(a, b, e))
        elif sys.argv[2] == "/":
            print("{} / {} = {}".format(a, b, f))
        else:
            print("Unknown operator. Available operators: +, -, * and /")
            exit(1)
Beispiel #18
0
#!/usr/bin/python3
if __name__ == "__main__":
    from calculator_1 import add, sub, mul, div
    from sys import argv
    if len(argv) != 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)
    else:
        op = argv[2]
        if op != "+" and op != "-" and op != "*" and op != "/":
            print("Unknown operator. Available operators: +, -, * and /")
            exit(1)
        else:
            a = argv[1]
            b = argv[3]
            ai = int(a, 10)
            bi = int(b, 10)
            if argv[2] is "+":
                res = add(ai, bi)
            elif argv[2] is "-":
                res = sub(ai, bi)
            elif argv[2] is "*":
                res = mul(ai, bi)
            elif argv[2] is "/":
                res = div(ai, bi)
            print("{:d} {} {:d} = {:d}".format(ai, argv[2], bi, res))
#!/usr/bin/python3
from calculator_1 import add, sub, mul, div
if __name__ == '__main__':
    a = 10
    b = 5
    print('{} + {} = {}'.format(a, b, add(a, b)))
    print('{} - {} = {}'.format(a, b, sub(a, b)))
    print('{} * {} = {}'.format(a, b, mul(a, b)))
    print('{} / {} = {}'.format(a, b, div(a, b)))
Beispiel #20
0
#!/usr/bin/python3
if __name__ == "__main__":
    from sys import argv
    from calculator_1 import add, sub, mul, div
    l = len(argv)
    r = 0
    if l != 4:
        print('Usage: ./100-my_calculator.py <a> <operator> <b>')
        exit(1)
    else:
        a = int(argv[1])
        b = int(argv[3])
        if argv[2] == '+':
            r = add(a, b)
            print('{:d} + {:d} = {:d}'.format(a, b, r))
        elif argv[2] == '-':
            r = sub(a, b)
            print('{:d} - {:d} = {:d}'.format(a, b, r))
        elif argv[2] == '*':
            r = mul(a, b)
            print('{:d} * {:d} = {:d}'.format(a, b, r))
        elif argv[2] == '/':
            r = div(a, b)
            print('{:d} / {:d} = {:d}'.format(a, b, r))
        else:
            print('Unknown operator. Available operators: +, -, * and /')
            exit(1)
if __name__ == "__main__":

    import sys
    from calculator_1 import add, sub, mul, div

    myArgs = sys.argv

    if len(myArgs) != 4:
        print('Usage: ./100-my_calculator.py <a> <operator> <b>')
        exit(1)
    else:
        a = int(myArgs[1])
        b = int(myArgs[3])
        operator = myArgs[2]

    if operator not in ['+', '-', '*', '/']:
        print('Unknown operator. Available operators: +, -, * and /')
        exit(1)

    if operator == '+':
        print('{} {} {} = {}'.format(a, operator, b, add(a, b)))

    if operator == '-':
        print('{} {} {} = {}'.format(a, operator, b, sub(a, b)))

    if operator == '*':
        print('{} {} {} = {}'.format(a, operator, b, mul(a, b)))

    if operator == '/':
        print('{} {} {} = {}'.format(a, operator, b, div(a, b)))
#!/usr/bin/python3
if __name__ == "__main__":
    a = 10
    b = 5
    import calculator_1 as cal
    print('{} + {} = {}'.format(a, b, cal.add(int(a), int(b))))
    print('{} - {} = {}'.format(a, b, cal.sub(int(a), int(b))))
    print('{} * {} = {}'.format(a, b, cal.mul(int(a), int(b))))
    print('{} / {} = {}'.format(a, b, cal.div(int(a), int(b))))
#!/usr/bin/python3
from calculator_1 import add, sub, mul, div
from sys import argv

if __name__ == "__main__":
    argc = len(argv) - 1
    op = ''

    if argc != 3:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)

    num1 = int(argv[1])
    op = argv[2]
    num2 = int(argv[3])

    if op == '+':
        print("{:d} {} {:d} = {:d}".format(num1, op, num2, add(num1, num2)))
    elif op == '-':
        print("{:d} {} {:d} = {:d}".format(num1, op, num2, sub(num1, num2)))
    elif op == '*':
        print("{:d} {} {:d} = {:d}".format(num1, op, num2, mul(num1, num2)))
    elif op == '/':
        print("{:d} {} {:d} = {:d}".format(num1, op, num2, div(num1, num2)))
    else:
        print("Unknown operator. Available operators: +, -, * and /")
        exit(1)
#!/usr/bin/python3

if __name__ == '__main__':
    from calculator_1 import add, sub, mul, div
    import sys as s
    operators = '+-*/'
    if (len(s.argv) is 4 and (s.argv[2] in operators)):
        op1 = int(s.argv[1])
        op2 = int(s.argv[3])
        if (operators[0] is s.argv[2]):
            print('{:d} + {:d} = {:d}'.format(op1, op2, add(op1, op2)))
        if (operators[1] is s.argv[2]):
            print('{:d} - {:d} = {:d}'.format(op1, op2, sub(op1, op2)))
        if (operators[2] is s.argv[2]):
            print('{:d} * {:d} = {:d}'.format(op1, op2, mul(op1, op2)))
        if (operators[3] is s.argv[2]):
            print('{:d} / {:d} = {:d}'.format(op1, op2, div(op1, op2)))
    else:
        if (len(s.argv) is 4):
            print('Unknown operator. Available operators: +, -, * and /')
        else:
            print('Usage: {} <a> <operator> <b>'.format(s.argv[0]))
        exit(1)
#!/usr/bin/python3

if __name__ == "__main__":
    from calculator_1 import add, sub, mul, div
    from sys import argv

    if len(argv) == 4:
        num1 = int(argv[1])
        num2 = int(argv[3])
    if len(argv) != 4:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)
    elif argv[2] == '+':
        print("{:d} + {:d} = {:d}".format(num1, num2, add(num1, num2)))
        exit(0)
    elif argv[2] == '-':
        print("{:d} - {:d} = {:d}".format(num1, num2, sub(num1, num2)))
        exit(0)
    elif argv[2] == '*':
        print("{:d} * {:d} = {:d}".format(num1, num2, mul(num1, num2)))
        exit(0)
    elif argv[2] == '/':
        print("{:d} / {:d} = {:d}".format(num1, num2, div(num1, num2)))
        exit(0)
    else:
        print("Unknown operator. Available operators: +, -, * and /")
        exit(1)
Beispiel #26
0
if __name__ == "_main__":
    from calculator_1 import add, sub, mul, div
    from sys import argv
    ac = len(argv)
    if ac != 3:
        print("Usage: ./100-my_calculator.py <a> <operator> <b>")
        exit(1)
    a = int(argv[1])
    operator = int(argv[2])
    b = int(argv[3])
    if operator != '+':
        result = add(a, b)
    elif operator != '-':
        result = sub(a, b)
    elif operator != '*':
        result = mul(a, b)
    elif operator != '/':
        result = div(a, b)
    else:
        print("Unknown operator. Available operators: +, -, * and /")
    print("{:d} {} {:d} = {:d}".format(a, operator, b, result))
#!/usr/bin/python3
if __name__ == "__main__":
    from calculator_1 import add, sub, mul, div
    a = 10
    b = 5
    print("{:d} + {:d} = {:d}".format(a, b, (add(a, b))))
    print("{:d} - {:d} = {:d}".format(a, b, (sub(a, b))))
    print("{:d} * {:d} = {:d}".format(a, b, (mul(a, b))))
    print("{:d} / {:d} = {:d}".format(a, b, (div(a, b))))
Beispiel #28
0
#!/usr/bin/python3
if __name__ == "__main__":
    from sys import argv
    from calculator_1 import add, sub, mul, div
    if len(argv) != 4:
        print(
            "{:s}".format("Usage: ./100-my_calculator.py <a> <operator> <b>"))
        exit(1)
    elif argv[2] == '+':
        print("{:d} {:s} {:d} = {:d}".format(int(argv[1]), argv[2],
                                             int(argv[3]),
                                             add(int(argv[1]), int(argv[3]))))
    elif argv[2] == '-':
        print("{:d} {:s} {:d} = {:d}".format(int(argv[1]), argv[2],
                                             int(argv[3]),
                                             sub(int(argv[1]), int(argv[3]))))
    elif argv[2] == '*':
        print("{:d} {:s} {:d} = {:d}".format(int(argv[1]), argv[2],
                                             int(argv[3]),
                                             mul(int(argv[1]), int(argv[3]))))
    elif argv[2] == '/':
        print("{:d} {:s} {:d} = {:d}".format(int(argv[1]), argv[2],
                                             int(argv[3]),
                                             div(int(argv[1]), int(argv[3]))))
    else:
        print("{:s}".format(
            "Unknown operator. Available operators: +, -, * and /"))
        exit(1)
#!/usr/bin/python3
if __name__ == "__main__":
    import sys
    import calculator_1
if (len(sys.argv) == 4):
    operator = sys.argv[2]
    a = int(sys.argv[1])
    b = int(sys.argv[3])
    if (operator == "+"):
        print("{} + {} = {}".format(a, b, calculator_1.add(a, b)))
    elif (operator == "-"):
        print("{} - {} = {}".format(a, b, calculator_1.sub(a, b)))
    elif (operator == "*"):
        print("{} * {} = {}".format(a, b, calculator_1.mul(a, b)))
    elif (operator == "/"):
        print("{} / {} = {}".format(a, b, calculator_1.div(a, b)))
    else:
        print("Unknown operator. Available operators: +, -, * and /")
        exit(1)
else:
    print("Usage: ./100-my_calculator.py <a> <operator> <b>")
    exit(1)
Beispiel #30
0
#!/usr/bin/python3
from calculator_1 import add, sub, mul, div
from sys import argv

argv = argv[1:]
argc = len(argv)

if __name__ == "__main__":
    if argc != 3:
        print('Usage: ./100-my_calculator.py <a> <operator> <b>')
        exit(1)

    a = int(argv[0])
    b = int(argv[2])

    op = argv[1]

    if op == '+':
        res = add(a, b)
    elif op == '-':
        res = sub(a, b)
    elif op == '*':
        res = mul(a, b)
    elif op == '/':
        res = div(a, b)
    else:
        print('Unknown operator. Available operators: +, -, * and /')
        exit(1)

    print('{} {} {} = {}'.format(a, op, b, res))