'''

ABC050 A - Addition and Subtraction Easy

https://atcoder.jp/contests/abc050/tasks/abc050_a

'''

a, op, b = input().split()

a, b = int(a), int(b)



if op == '+':

    ans = a+b

elif op == '-':

    ans = a-b

print(ans)

'''

ABC050 A - Addition and Subtraction Easy

https://atcoder.jp/contests/abc050/tasks/abc050_a

'''

def main():

    a, op, b = input().split()

    a, b = int(a), int(b)



    if op == '+':

        ans = a+b

    elif op == '-':

        ans = a-b

    print(ans)



if __name__ == '__main__':

    main()

"""
ABC050 A - Addition and Subtraction Easy
https://atcoder.jp/contests/abc050/tasks/abc050_a
"""
a, op, b = input().split()
a, b = int(a), int(b)
if op == "+":
    ans = a + b
elif op == "-":
    ans = a - b
print(ans)

"""
ABC050 A - Addition and Subtraction Easy
https://atcoder.jp/contests/abc050/tasks/abc050_a
"""


def main():
    a, op, b = input().split()
    a, b = int(a), int(b)
    if op == "+":
        ans = a + b
    elif op == "-":
        ans = a - b
    print(ans)


if __name__ == "__main__":
    main()

-a, op, b = input().split() -a, b = int(a), int(b) -if op == "+": -    ans = a + b -elif op == "-": -    ans = a - b -print(ans) + + +def main(): +    a, op, b = input().split() +    a, b = int(a), int(b) +    if op == "+": +        ans = a + b +    elif op == "-": +        ans = a - b +    print(ans) + + +if __name__ == "__main__": +    main()