1181 about baekjoon HOT 4 OPEN

const rl = require('readline').createInterface(process.stdin)

let count
const set = new Set()
rl.on('line', line => {
    if (!count) {
        count = +line
    } else {
        set.add(line)
        if (!--count) {
            const list = [...set]
            list.sort((s1, s2) => (s1.length - s2.length) || s1.localeCompare(s2))
            console.log(list.join('\n'))
        }
    }
})

const output = input.sort((a, b) => a.length - b.length || a.localeCompare(b));
const result = Array.from(new Set(output));
console.log(result.join('\n'));

const [T, ...input] = require('fs').readFileSync('/dev/stdin').toString().split('\n');
let output = '';

const output = input.sort((a, b) => a.length - b.length || a.localeCompare(b));
const result = Array.from(new Set(output));
console.log(result.join('\n'));

console.log(output);