๐ sort์ ์ฌ์ฉ๋ฒ ๋ ์ ๋๋ก ์ตํ์
๐ Set์ ์ฌ์ฉํ์ฌ ์ค๋ณต ์ ๊ฑฐ
const fs = require('fs');
const input = fs.readFileSync('/dev/stdin').toString().trim().split('\n');
const N = input.shift();
input.sort((a, b) => a.length - b.length || a.localeCompare(b));
const set = new Set(input);
const result = [...set];
let str = "";
result.map((item) => (str += item + "\n"));
console.log(str);