This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
int main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);
    long long n,m,ans = 0;
    cin>>n>>m;
    char arr[n][m];
    for(int i = 0;i<n;i++)for(int j = 0;j<m;j++)cin>>arr[i][j];
    for(int i = 0;i<n;i++){
        for(int j = 0;j<m;j++){
            for(int k = i;k<n;k++){
                for(int u = j;u<m;u++){
                    int a = 0;
                    int r = 0;
                    for(int e = i;e<=k;e++){
                        for(int y = j;y<=u;y++){
                            if(arr[e][y]=='.')a++;
                            else r = 1;
                        }
                    }
                    if(r==0)ans+=a;
                }
            }
        }
    }
    cout<<ans<<"\n";
}
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