#include <stdio.h>
#include <stdlib.h>
 
 
 
int main(){
    int i,j,k=1;
    int a,b;
    int **mat;
    int *p;
    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);
    p = (int *)malloc(sizeof(int)*a*b);
 
    for(i=0; i<a; i++){
    	mat[i] = p+i*b;
    }
 
	//ここで2次元配列に数値を代入する
	if(mat==NULL || p==NULL){
		printf("ERROR\n");
		return 0;
	}
 
	for(i=0; i<a; i++){
		for(j=0; j<b; j++){
			mat[i][j] = k;
			k++;
		}
	}
    //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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