process.stdin.on('data', function (input) { numbers = input.split("\n"); sum = parseInt(numbers[0]) + parseInt(numbers[1]) process.stdout.write(sum+"\n"); });

this is a sample code that takes a two digit integer and prints its sum. Can you use this format and see if it works?

    process.stdin.resume();
    process.stdin.setEncoding("ascii");
    process.stdin.on("data", function (input) {
        var output = ''
        if (input % 3 === 0){
            output += 'Fizz'
        }
        if (input % 5 === 0){
            output += 'Buzz'
        }
        console.log(output || input)
    });

    for(i=1;i<=30;i++){
        process.stdin.emit('data', i.toString())
    }
    process.stdin.destroy()