01. Train

function train(input) {
    let arr = input.shift().split(' ').map(Number);
    let capacity = Number(input.shift());

    while (input.length !== 0) {
        let command = input.shift().split(' ');
        command[0] === 'Add' ? arr.push(Number(command[1])) : command = Number(command[0]);

        for (let i = 0; i < arr.length; i++) {
            if (arr[i] + command <= capacity) {
                arr[i] += command;
                break;
            }
        }
    }
    console.log(arr.join(' '));

}