# -*- coding: utf-8 -*-
loop{ # 無限ループをするメソッド
  a, op, b = STDIN.gets.split(' ')
  a = a.to_i
  b = b.to_i
  case op
  when  "+"
    puts  a + b
  when  "-"
    puts  a - b 
  when "*"
    puts  a * b 
  when "/" 
    puts  a / b 
  else
    break
  end
}