Module b
Expand description
ยงABC 394 B - cat
refs: https://atcoder.jp/contests/abc394/tasks/abc394_b
use proconio::input;
fn main() {
input! {
n: usize,
mut s: [String; n],
}
s.sort_by_key(|t| t.len());
println!("{}", s.join(""));
}