fn main() { let stdin = std::io::read_to_string(std::io::stdin()).unwrap(); let mut stdin = stdin.split_ascii_whitespace(); let n: usize = stdin.next().unwrap().parse().unwrap(); println!("{}", output(solve(n))); } fn solve(n: usize) -> String { if n == 1 { String::from("1") } else { (0..n) .rev() .map(|x| String::from((x as u8 + b'0') as char).repeat(n)) .collect() } } fn output(ans: String) -> String { ans }