57. 机场航班调度

const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
});
rl.on('line', function(line) {
    let flights = input.split(',');
    flights.sort((s1, s2) => {
        let order = '$&*0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
        for(let i=0; i<2; i++) {
            let diff = order.indexOf(s1[i]) - order.indexOf(s2[i]);
            if (diff !== 0) {
                return diff;
            }
        }
        return s1.slice(2) - s2.slice(2);
    });
    console.log(flights.join(','));
});