#include <stdio.h>
#include <stdlib.h>
 
int main() {
    int i, j, count = 1;
    int a, b;
    int **mat;
    scanf("%d %d", &a, &b);
 
    // 動的に2次元配列を確保
    mat = (int **)malloc(a * sizeof(int *));
    for(i = 0; i < a; i++) {
        mat[i] = (int *)malloc(b * sizeof(int));
    }
 
    // 自然数を順に代入
    for(i = 0; i < a; i++) {
        for(j = 0; j < b; j++) {
            mat[i][j] = count++;
        }
    }
 
    // 出力（いじらなくてOKと書いてある部分）
    for(i = 0; i < a; i++) {
        for(j = 0; j < b; j++) {
            printf("%d ", mat[i][j]);
        }
        printf("\n");
    }
 
    // 確保したメモリの解放
    for(i = 0; i < a; i++) {
        free(mat[i]);
    }
    free(mat);
 
    return 0;
}
 
 

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