UVA 12503

#include<iostream>

using namespace std;

#define debug(x) cout<<">"<<x<<endl;

int main()
{
 int t,p1,p2;
 string s;
 int n,i;
 string pos[101];
 
 while(cin>>t)
 {
  while(t--)
  {
   int tot=0;
   
   cin>>n;
   
   for(i=0; i<n; i++)
   {
    cin>>s;
    if(s=="LEFT")
    {
     tot-=1;
     pos[i]=s;
    }
    
    else if(s=="RIGHT")
    {
     tot+=1;
     pos[i]=s;
    }
    
    else{
     cin>>s;
     cin>>p2;
     
     if(pos[p2-1]=="LEFT")
     {
      tot-=1;
      pos[i]=pos[p2-1];
     }
     else if(pos[p2-1]=="RIGHT")
     {
      tot+=1;
      pos[i]=pos[p2-1];
     }
    }
   }
   
   cout<<tot<<endl;
  }
  
 }
 return 0;
}