10分求助！！！

#include<bits/stdc++.h>
using namespace std;
int main()
{
	char a[102][102];
	int m,i,j,b[102][102]={0},n;
	cin>>n>>m;
    for(int i=1;i<n;i++){
        for(int j=1;j<m;j++){
            cin>>a[i][j];
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            if(a[i][j]=='*') {
                b[i][j+1]++;  b[i][j-1]++; 
                b[i+1][j]++; b[i+1][j-1]++; b[i+1][j+1]; b[i-1][j]++; 
                b[i-1][j-1]++; b[i-1][j+1]++;
            }
		}
	}
	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;
}