const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;

void (async function () {
    // Write your code here
    await readline();
    const arr = [];
    while ((line = await readline())) {
        arr.push(line);
    }
    arr.sort().forEach((item) => console.log(item));
})();