#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;
    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(a* sizeof(int*));
	for (int i = 0; i < a; i++) {
    mat[i] = (int*)malloc(b * sizeof(int));
}
 
 
 
	//ここで2次元配列に数値を代入する
	k=1;
	for(i=0;i<a;i++){
        for(j=0;j<b;j++){
        	mat[i][j]=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？
for (int i = 0; i < a; i++) {
    free(mat[i]); // 各行のメモリを解放
}
free(mat); // 行ポインタのメモリを解放
 
 
    return 0;
}
 

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