#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\n");
    		return 0;
		}
 
    for (i = 0; i < a; i++) {
        mat[i] = (int *)malloc(sizeof(int) * b);
        if (mat[i] == NULL) {
			 printf("ERROR\n");
			 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;
			  k=k+1;
            }
    }
 
    //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？
	for(int i=0;i<a;i++){
	free(mat[i]);
	}
	free(mat);
 
    return 0;
}
 

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