#include <stdio.h>
#include <stdlib.h>

int main() {
    int a, b;

    if (scanf("%d %d", &a, &b) != 2 || a <= 0 || b <= 0) {
        printf("invalid\n");
        return 1;
    }

    int **matrix = (int **)malloc(a * sizeof(int *));
    for (int i = 0; i < a; i++) {
        matrix[i] = (int *)malloc(b * sizeof(int));
    }

    int num = 1;
    for (int i = 0; i < a; i++) {
        for (int j = 0; j < b; j++) {
            matrix[i][j] = num++;
        }
    }

    for (int i = 0; i < a; i++) {
        for (int j = 0; j < b; j++) {
            printf("%d ", matrix[i][j]);
        }
        printf("\n");
    }

    //A.メモリの解放
    for (int i = 0; i < a; i++) {
        free(matrix[i]);
    }
    free(matrix);

    return 0;
}