#include <stdio.h>
#include <stdlib.h>
#define maxn 80
int main(){
    char str[maxn];
    int T, sorce, countA;
    scanf("%d", &T);
    while(T--){
        scanf("%s", str);
        sorce = 0;countA = 0;
        for(int i=0;i<str[i];i++){
            if (str[i] == 'X') countA = 0;
            else {countA++; sorce += countA;}
        }
        printf("%d\n", sorce);
    }
}