#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 *));
    if(mat==NULL){
    	printf("失敗\n");
    	exit(1);
    }
    for(i=0;i<a;i++){
    	mat[i]=(int*)malloc(b*sizeof(int));
    	if(mat[i]==NULL){
    		printf("失敗\n");
    		exit(1);
    	}
    }
 
	//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++){
			scanf("%d,%d",&mat[i][j]);
		}
	}
 
    //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,%d",mat[i][j]);
        }
        printf("\n");
    }
 
    //さて，最後に忘れずにすることと言えば？
	for(i=0;i<a;i++){
		free(mat[i]);
	}
	free(mat);
 
    return 0;
}
 

I2luY2x1ZGUgPHN0ZGlvLmg+CiNpbmNsdWRlIDxzdGRsaWIuaD4KCi8v5b+F6KaB44GM44GC44KM44Gw5aSJ5pWw44Gq44Gp44KS6L+95Yqg44GX44Gm44KCT0vjgafjgZkKCmludCBtYWluKCl7CiAgICBpbnQgaSxqLGs7CiAgICBpbnQgYSxiOwogICAgaW50ICoqbWF0OwogICAgc2NhbmYoIiVkICVkIiwmYSwmYik7CgoJLy/jgZPjgZPjgacy5qyh5YWD6YWN5YiX44Gu5YuV55qE56K65L+d44KS44GZ44KLCiAgICBtYXQ9KGludCoqKW1hbGxvYyhhKnNpemVvZihpbnQgKikpOwogICAgaWYobWF0PT1OVUxMKXsKICAgIAlwcmludGYoIuWkseaVl1xuIik7CiAgICAJZXhpdCgxKTsKICAgIH0KICAgIGZvcihpPTA7aTxhO2krKyl7CiAgICAJbWF0W2ldPShpbnQqKW1hbGxvYyhiKnNpemVvZihpbnQpKTsKICAgIAlpZihtYXRbaV09PU5VTEwpewogICAgCQlwcmludGYoIuWkseaVl1xuIik7CiAgICAJCWV4aXQoMSk7CiAgICAJfQogICAgfQogICAgCgkvL+OBk+OBk+OBpzLmrKHlhYPphY3liJfjgavmlbDlgKTjgpLku6PlhaXjgZnjgosKCWZvcihpPTA7aTxhO2krKyl7CgkJZm9yKGo9MDtqPGI7aisrKXsKCQkJc2NhbmYoIiVkLCVkIiwmbWF0W2ldW2pdKTsKCQl9Cgl9CiAgICAKICAgIC8v5Lul5LiL44Gu6YOo5YiG44Gv6KGo56S644Gu6YOo5YiG44Gn44GZCiAgICAvL+OBhOOBmOOCieOBquOBj+OBpk9LCiAgICBmb3IoaT0wO2k8YTtpKyspewogICAgICAgIGZvcihqPTA7ajxiO2orKyl7CiAgICAgICAgICAgIHByaW50ZigiJWQsJWQiLG1hdFtpXVtqXSk7CiAgICAgICAgfQogICAgICAgIHByaW50ZigiXG4iKTsKICAgIH0KICAgIAogICAgLy/jgZXjgabvvIzmnIDlvozjgavlv5jjgozjgZrjgavjgZnjgovjgZPjgajjgajoqIDjgYjjgbDvvJ8KCWZvcihpPTA7aTxhO2krKyl7CgkJZnJlZShtYXRbaV0pOwoJfQoJZnJlZShtYXQpOwoKICAgIHJldHVybiAwOwp9Cg==

MiAzCg==

2 3