char = input()
a = int(input())
b = int(input())

add = "+"
sub = "-"
mul = "*"
div = "/"
mod = "%"

if add == char:
    add = a + b
    print(add)
elif sub == char:
    sub = a - b
    print(sub)
elif mul == char:
    mul = a * b
    print(mul)
elif div == char:
    div = a / b
    print(div)
elif mod == char:
    mod = a % b
    print(mod)