public class Solution { public static void main(String[] args) throws Exception { trojkat(10); } public static void grupa(int n, char ch) { for (int i = 0; i < n; i++) System.out.print(ch); } public static void trojkat(int m) { for (int i = 0; i < m; i++) { grupa(i + 1, '8'); System.out.println(); } } }