#include <stdio.h>
#include <stdlib.h>
 
//必要があれば変数などを追加してもOKです
 
int main() {
    int i, j, k = 1;
    int a, b;
    int** mat;
    scanf("%d %d", &a, &b);
 
    //ここで2次元配列の動的確保をする
 
 
 
    mat = (int**)malloc(sizeof(int*) * a);
    if(mat==NULL){
    	printf("ERROR");
    	return 0;
    }
 
    for(i=0; i<a; i++){
    mat[i] = (int*)malloc(sizeof(int) * b);
    if(mat[i]==NULL){
    	printf("ERROR");
    	return 0;
    }
}
 
    //ここで2次元配列に数値を代入する
    for (i = 0; i < a; i++) {
        for (j = 0; j < b; j++) {
            mat[i][j] = k++;
        }
        printf("\n");
    }
 
 
    //以下の部分は表示の部分です
    //いじらなくてOK
    for (i = 0; i < a; i++) {
        for (j = 0; j < b; j++) {
            printf("%d ", mat[i][j]);
        }
        printf("\n");
    }
 
    //さて，最後に忘れずにすることと言えば？
    free(mat);
 
    return 0;
}
 

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