function solve(commands) {
    let i,
        numbres = commands.shift().split(' '),
        temp,
        index;

    for (i = 0; i < commands.length; i += 1) {
        temp = commands[i].split(' ');
        switch (temp[0]) {
            case 'Add':
                numbres.push(temp[1]);
                break;

            case 'Remove':
                // index = numbres.indexOf(temp[1])
                // numbres.splice(index, 1);
                numbres=numbres.filter(x=>x!==temp[1]);
                break;

            case 'RemoveAt':
                index = Number(temp[1]);
                numbres.splice(index, 1);
                break;

            case 'Insert':
                index = Number(temp[2]);
                numbres.splice(index, 0, temp[1]);
                break;
        }
    }
    console.log(numbres.join(' '));
}