2行！

```#include <iostream>
using namespace std;char a [105][105];int b[105][105];int x[10] = {-1,-1,-1,0,0,1,1,1};int y[10] = {-1,0,1,-1,1,-1,0,1};int main(){int n , m;cin >> n >> m;for(int i = 1 ;i <= n; i++){for(int j = 1; j<=m;j++){cin >> a[i][j];if(a[i][j] == '*'){for(int k = 0; k <= 7; k++){b[i + x[k]][j + y[k]]++;}}}}for(int i = 1; i <= n; i++){for(int j = 1; j <= m ; j++){if(a[i][j]=='*')cout << "*";else cout << b[i][j];}cout << endl;}return 0;}