#include <bits/stdc++.h>
using namespace std;
int main() {
  double N;
  string s[100];
  string R, B;
  cin >> N;
  for (int i = 0; i < N; i++) cin >> s[i];
  int r = 0;
  int i = 0;
  while (i < N) {
    if (s[i] == "R") {
      ++r;
      ++i;
    } else
      ++i;
  }
  if (r > N / 2)
    cout << "Yes" << endl;
  else
    cout << "No" << endl;
  return 0;
}
