SNZ Lab 1.1

# -*- coding: utf-8 -*-
__operators = ('+', '-', '/', '//', '*', '**', '%')


def calculator():
    x = input()
    operator = input()
    y = input()

    rezultat = 0
    if operator == "+":
        rezultat = int(x) + int(y)
    elif operator == "-":
        rezultat = int(x) - int(y)
    elif operator == "*":
        rezultat = int(x) * int(y)
    elif operator == "//":
        rezultat = int(x) / int(y)
    elif operator == "/":
        rezultat = float(x) / float(y)
    elif operator == "%":
        rezultat = int(x) % int(y)
    elif operator == "**":
        rezultat = int(x) ** int(y)
    else:
        print("Error")
        return 0
    print(rezultat)
    return rezultat


if __name__ == "__main__":
    calculator()