'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 = Number(expression[0]);
    var right = Number(expression[2]);
    var op = expression[1];

    switch(op) {
    	case '+':
    	console.log(left + right);
    	break;
    	case '-':
    	console.log(left - right);
    	break;
    	case '*':
    	console.log(left * right);
    	break;
    	case '/':
    	console.log(Math.floor(left / right));
    	break;

    }

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