while True:
  str = input()
  if str == 'exit':
    break
  a, sign, b = str.split(" ")
  a = int(a)
  b = int(b)

  if sign == '+':
    print(a + b)
  elif sign == '-':
    print(a - b)
  elif sign == '*':
    print(a * b)
  elif sign == '/':
    if(b == 0):
      print("zachem ty delish na 0, 3.14door")
    else:
      print(a / b)
  elif sign == '%':
    print(a % b)