Matrix of numbers

import java.util.Scanner;

public class Main {

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

        int n = sc.nextInt();
        int lines, column;

        for ( column = 1; column <= n; column++){
            System.out.print(column + " ");

            for (lines = column + 1; lines < column + n; lines++){
                System.out.print(lines + " ");
            }
            System.out.println();
        }
    }
}