#include <iostream>
#include <string>
 
using namespace std;
 
int main(){
     int N,r,b;
     cin >> N;
     char s[N];
     cin >> s;
    
    
     for(int i=0;i<N;i++){
          if(s[i] == 'R')
            r++;
         else
            b++;
          }
 
     if(r>b)
       cout<< "Yes"<<endl;
     else
       cout<< "No" <<endl;
     
 
     return 0;
}
#include <iostream>
#include <string>

using namespace std;
 
int main(){
     int N,r,b;
     cin >> N;
     char s[N];
     cin >> s;
    
    
     for(int i=0;i<N;i++){
         if(s[i] == 'R')
            r++;
         else
            b++;
          }

     if(r>b)
       cout << "Yes" <<endl;
     else
       cout << "No" <<endl;
     

     return 0;
}
