#include <bits/stdc++.h>

using namespace std;


int main()
{

    int n,p,Score=0;
    char s;
    vector<char>v;
    cin >> n;
    for (int i=0;i<n;i++){
        cin >> p;
        for(int j=0;j<p;j++){
            cin >> s;
            v.push_back(s);
            Score=0;
        }


        while(!v.empty()){

            if(v[0]=='V'){
                Score+=5;
                v.erase(v.begin());
            }
            else if(v[0]=='W'){
                Score+=2;
                v.erase(v.begin());
            }


            else if(v[0]=='X'){
                if(v[1]=='V'){
                    Score-=5;
                    v.erase(v.begin() + l);
                }
                else if(v[1]=='W'){
                    Score-=2;
                    v.erase(v.begin() + l);
                }
            }


            if(v[0]=='Y'){
                v.push_back(v[1]);
                v.erase(v.begin());
                v.erase(v.begin());
            }
            if(v[0]=='Z'){
                if(v[1]=='V'){
                    Score /= 5;
                }
                else if(v[1]=='W'){
                    Score /= 2;
                }
                if(v[1]=='W' || v[1]=='V'){
                    v.erase(v.begin()+1);
                }
                v.erase(v.begin());
            }
        }
        cout << Score <<endl;
    }

    return 0;

}