#include <stdio.h>
#include <stdlib.h>
 
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 *)); // 行のポインタ配列を確保
    for (i = 0; i < a; i++) {
        mat[i] = (int *)malloc(b * sizeof(int)); // 各行の列を確保
    }
 
    // ここで2次元配列に数値を代入する
    k = 1; // 1から始める
    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
    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]); // 各行のメモリを解放
    }
    free(mat); // 行のポインタ配列を解放
 
    return 0;
}
 

I2luY2x1ZGUgPHN0ZGlvLmg+CiNpbmNsdWRlIDxzdGRsaWIuaD4KIAppbnQgbWFpbigpewogICAgaW50IGksIGosIGs7CiAgICBpbnQgYSwgYjsKICAgIGludCAqKm1hdDsKICAgIHNjYW5mKCIlZCAlZCIsICZhLCAmYik7CiAKICAgIC8vIOOBk+OBk+OBpzLmrKHlhYPphY3liJfjga7li5XnmoTnorrkv53jgpLjgZnjgosKICAgIG1hdCA9IChpbnQgKiopbWFsbG9jKGEgKiBzaXplb2YoaW50ICopKTsgLy8g6KGM44Gu44Od44Kk44Oz44K/6YWN5YiX44KS56K65L+dCiAgICBmb3IgKGkgPSAwOyBpIDwgYTsgaSsrKSB7CiAgICAgICAgbWF0W2ldID0gKGludCAqKW1hbGxvYyhiICogc2l6ZW9mKGludCkpOyAvLyDlkITooYzjga7liJfjgpLnorrkv50KICAgIH0KIAogICAgLy8g44GT44GT44GnMuasoeWFg+mFjeWIl+OBq+aVsOWApOOCkuS7o+WFpeOBmeOCiwogICAgayA9IDE7IC8vIDHjgYvjgonlp4vjgoHjgosKICAgIGZvciAoaSA9IDA7IGkgPCBhOyBpKyspIHsKICAgICAgICBmb3IgKGogPSAwOyBqIDwgYjsgaisrKSB7CiAgICAgICAgICAgIG1hdFtpXVtqXSA9IGsrKzsKICAgICAgICB9CiAgICB9CiAKICAgIC8vIOS7peS4i+OBrumDqOWIhuOBr+ihqOekuuOBrumDqOWIhuOBp+OBmQogICAgZm9yIChpID0gMDsgaSA8IGE7IGkrKykgewogICAgICAgIGZvciAoaiA9IDA7IGogPCBiOyBqKyspIHsKICAgICAgICAgICAgcHJpbnRmKCIlZCAiLCBtYXRbaV1bal0pOwogICAgICAgIH0KICAgICAgICBwcmludGYoIlxuIik7CiAgICB9CiAKICAgIC8vIOODoeODouODquOBruino+aUvgogICAgZm9yIChpID0gMDsgaSA8IGE7IGkrKykgewogICAgICAgIGZyZWUobWF0W2ldKTsgLy8g5ZCE6KGM44Gu44Oh44Oi44Oq44KS6Kej5pS+CiAgICB9CiAgICBmcmVlKG1hdCk7IC8vIOihjOOBruODneOCpOODs+OCv+mFjeWIl+OCkuino+aUvgogCiAgICByZXR1cm4gMDsKfQo=

MiA0

2 4