#include <iostream>
#include <cstring>
using namespace std;
int main() {
    int N;
    cin >> N;
    for(int i = 0; i < N; ++i){
        string s;
        cin >> s;
        int sum = 0, tmp = 1;
        int len = s.length();
        for(int j = 0; j < len; ++j){
            if(s[j] == 'O') {
                sum += tmp;
                tmp++;
            }
            else if(s[j] == 'X') {
                tmp = 1;
            }
        }
        cout << sum << endl;
    }
    return 0;
}