ProgBasics07Nested-Loops-Y03numberTable

import java.util.Scanner;

public class Y03numberTable {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int n = Integer.parseInt(scanner.nextLine());

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                int sum = i + j +1;
                if (sum>n) {
                    sum = 2 * n - sum;
                }
                System.out.print(sum + " ");
            }
            System.out.println();
        }
    }
}