#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);  
    for(int i=0; i<a; i++){
    mat[i] = (int *)malloc(sizeof(int)*b);
    }  
	//ここで2次元配列に数値を代入する
    if(mat == 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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