#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;
    int c=0;
    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("エラー（行ポインタ）。\n");
        return 0;
    }
 
    for (int i = 0; i < a; i++) {
        mat[i] = (int *)malloc(sizeof(int)*b);
        if (mat[i] == NULL) {
            printf("エラー（列ポインタ）。\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++){
            c+=1;
            mat[i][j]=c;
        }   
    }        
    //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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