import java.util.Arrays;
import java.util.Scanner;

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

        String[] input = scanner.nextLine().split(", ");
        int size = Integer.parseInt(input[0]);
        String type = input[1];
        int[][] matrix = new int[size][size];
        int num = 1;


        if (type.equals("A")) {
            for (int col = 0; col < size; col++) {
                for (int rol = 1; rol <size; rol++) {
                    matrix[rol][col] = num;
                    num++;


                }

            }
        //} else if (type.equals("B")) {

        }
        for(int rows=0;rows<matrix.length;rows++){

            for(int cols=0;cols<matrix[rows].length;cols++){
                System.out.print(matrix[rows][cols]+" ");
            }
            System.out.println();
        }


    }
}