public class Test {

    public static void main(String[] args) {
        int n = 5;
        for (int i = 0, k = -n + 1; i < n; i++) {
            for (int j = k; j < n; j++) {
                System.out.print(i > Math.abs(j) ? 0 : n - Math.abs(j) + i);
            }
            System.out.println();
        }
    }
}