import java.util.*;
 
public class Main
{
    public static void main(String[] args)
    {
        Scanner input = new Scanner(System.in);
        int n = input.nextInt();
 
        while (n > 0)
        {
            String answer = input.nextLine();
            int score = 0;
            int sum = 0;
 
            for (int i = 0; i < answer.length(); i++)
            {
                if (answer.charAt(i) == 'X') {
                    score = 0;
                    continue;
                }
 
                score++;
                sum += score;
            }
 
            System.out.println(sum);
            n--;
        }
    }
}

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5
OOXXOXXOOO
OOXXOOXXOO
OXOXOXOXOXOXOX
OOOOOOOOOO
OOOOXOOOOXOOOOX