#include <stdio.h>
#include <stdlib.h>
 
// 必要な変数を追加してもOK
 
int main() {
    int i, j;
    int a, b;
    int **mat;
 
    // 行数と列数を入力
    scanf("%d %d", &a, &b);
 
    // 2次元配列の動的確保
    mat = (int**)malloc(sizeof(int*) * a);  // 行のためのメモリ確保
    if (mat == NULL) {
        printf("Memory allocation failed!\n");
        return 1;
    }
 
    // 各行に対して列のためのメモリ確保
    for (i = 0; i < a; i++) {
        mat[i] = (int*)malloc(sizeof(int) * b);  // 列のメモリ確保
        if (mat[i] == NULL) {
            printf("Memory allocation failed!\n");
            return 1;
        }
    }
 
    // 2次元配列に値を代入
    for (i = 0; i < a; i++) {
        for (j = 0; j < b; j++) {
            scanf("%d", &mat[i][j]);  // 各要素に値を入力
        }
    }
 
    // 配列の内容を表示
    for (i = 0; i < a; i++) {
        for (j = 0; j < b; j++) {
            printf("%d ", mat[i][j]);
        }
        printf("\n");
    }
 
    // メモリの解放
    for (i = 0; i < a; i++) {
        free(mat[i]);  // 各行に対して解放
    }
    free(mat);  // 行のポインタ自体を解放
 
    return 0;
}
 

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