process.stdin.setEncoding('utf-8');
process.stdin.on('data', (input) => {
  var arry = input.split(' ');
  var x = Number(arry[0]);
  var y = Number(arry[2]);

  var op = arry[1]
  var result = ''

  if (op == '+') {
    result+= x + y;
  } else if (op == '-') {
    result+= x - y;
  } else if (op == '*') {
    result+= x * y;
  } else if (op == '/') {
    result+= Math.floor(x / y);
  }

  console.log(result);
})
