'use strict';
process.stdin.on('data', function(chunk) {
  var inputs = chunk.toString().trim();
  var expressions = inputs.split('\n');

  for (var i = 0; i < expressions.length; i++) {
    if (expressions[i] === '0 ? 0') {
      break;
    }
    var expression = expressions[i].split(' ');
    var left = parseFloat(expression[0]);
    var right = parseFloat(expression[2]);
    var op = expression[1];

    if (op === '+') {
      console.log(left + right);
    } else if (op === '-') {
      console.log(left - right);
    } else if (op === '*') {
      console.log(left * right);
    } else if (op === '/') {
      console.log(Math.floor(left / right));
    }
  }

});
process.stdin.resume();
process.stdin.setEncoding('utf8');