https://www.acmicpc.net/problem/8958
#include <iostream>
#include <string>
using namespace std;
int main(){
int N;
cin >> N;
string ox;
for(int i=0;i<N;i++) {
cin >> ox;
int cnt = 0, sum=0;
for(int j=0;j<ox.length();j++) {
if(ox[j]=='O') {
cnt++;
sum += cnt;
}
if(ox[j]!='O') {
cnt=0;
}
}
cout << sum << endl;
}
return 0;
}