def process(A, B, modulus, operation):
zero = bigInt.bigInt("0")
res = zero
if (modulus < zero):
print "Negative modulus!"
return False, res
if operation == '^':
res = bigInt.pow(A, B, modulus)
return True, res
if (modulus > zero):
A %= modulus
B %= modulus
if operation == '+':
res = A + B
elif operation == '-':
res = A - B
elif operation == '*':
res = A * B
elif operation == '/':
if B == zero:
print "Division by zero"
return False, res
res = A / B
elif operation == '%':
if (B == zero):
print "Division by zero"
return False, res
res = A % B
if (modulus > zero):
res %= modulus
while (res < zero):
res += modulus
return True, res
def noArguments():
print "Launched without parameters."
print "Perform all kind of operations with entered numbers."
print "Enter A:",
a = bigInt.bigInt(raw_input())
print "Enter B:",
b = bigInt.bigInt(raw_input())
print "A + B =", a, "+", b, "=", a + b
print "A - B =", a, "-", b, "=", a - b
print "A * B =", a, "*", b, "=", a * b
if b != bigInt.bigInt("0"):
print "A / B =", a, "/", b, "=", a / b
print "A % B =", a, "%", b, "=", a % b
else:
print "Division by zero"
print "Enter modulus for pow: ",
mod = bigInt.bigInt(raw_input())
print "A ^ B mod N =", a, "^", b, "mod", mod, "=", bigInt.pow(a, b, mod)
print "That's all"
def PowMod(A, B, M): return bigInt.pow(A, B, M)
