#include <stdio.h>
#include <stdlib.h>
 
int main() {
    int i, j, k = 1;
    int a, b;
    int **mat;
 
    // 行列のサイズを入力
    scanf("%d %d", &a, &b);
 
    // 2次元配列の動的確保
    mat=(int**)malloc(a*sizeof(int*)); // 行を確保
 
    for(i=0;i<a;i++) {
        mat[i]=(int*)malloc(b*sizeof(int)); // 各行に列を確保
 
    }
 
    // 2次元配列に数値を代入
    for (i = 0; i < a; i++) {
        for (j = 0; j < b; j++) {
            mat[i][j] = k++;
        }
    }
 
    // 配列を表示
    for (i = 0; i < a; i++) {
        for (j = 0; j < b; j++) {
            printf("%d ", mat[i][j]);
        }
        printf("\n");
    }
 
    // 動的メモリの解放
 
    return 0;
}
 

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