7.2

__author__ = 'Miguel'

def addition(a,b):
    return a+b

def soustraction(a,b):
    return a-b

def multiplication(a,b):
    return a*b

def procedure():
    instructions = input()
    instructions = instructions.split()
    for i in range(0, len(instructions), 3):
        a, b, proc = instructions[i:i+3]
        a, b = int(a), int(b)
        if proc == "A":
            print(addition(a, b))
        elif proc == "S":
            print(soustraction(a, b))
        elif proc == "M":
            print(multiplication(a, b))

if __name__ == "__main__":
    procedure()