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 <iostream>
using namespace std;
int main(){
int n, m; cin >> n >> m;
string g[n];
for (int i = 0; i < n; i++){
cin >> g[i];
}
int cntO[n]{}, cntI[m]{};
for (int i = 0; i < n; i++){
for (int j = 0; j < m; j++){
if (g[i][j] == 'O'){
cntO[i]++;
}
if (g[i][j] == 'I'){
cntI[j]++;
}
}
}
long long ans = 0;
for (int i = 0; i < n; i++){
for (int j = 0; j < m; j++){
if (g[i][j] == 'O'){
cntO[i]--;
}
if (g[i][j] == 'I'){
cntI[j]--;
}
if (g[i][j] == 'J'){
ans += cntO[i] * cntI[j];
}
}
}
cout << ans;
return 0;
}
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