1585

#include <iostream>
#include <stdio.h>
#include <vector>
#include <math.h>
#include <string.h>

using namespace std;

int main()
{
    int t,toAdd,sum;
    string s;

    cin>>t;

    while(t--)
    {
       cin>>s;

       sum = 0;
       toAdd = 0;

       for(int i=0;i<s.size();i++)
       {
          if(s[i]=='X')
            toAdd=0;
          else if(s[i]=='O')
            toAdd++;

          sum+=toAdd;
       }

       cout<<sum<<"\n";
    }

    return 0;
}
//OOXXOXXOOO