def test_sub():
# GIVEN two numbers
# WHEN I invoke the method
# THEN I get the addition of two numbers
assert demo.sub(3, 4) == -1
assert demo.sub(1, 9) == -8
assert demo.sub(2, 4) == -2
def test_sub():
# GIVEN two numbers
# WHEN I invoke the method
# THEN I get the addition of two numbers
#add_result = demo.add(3,4)
#assert add_result == 7
assert demo.sub(3,4) == -1
assert demo.sub(1,9) == -8
assert demo.sub(2,4) == -2
def test_sub():
assert demo.sub(3, 4) == -1
assert demo.sub(1, 9) == -8
assert demo.sub(2, 4) == -2
from sys import path
path.append('../')
from utils.math import add
from demo import sub
if __name__ == "__main__":
a = int(input())
print(sub(a, 1))
print(add(a, 1))