There are N people numbered 1 to N. Each person wears a red hat or a blue hat.

You are given a string s representing the colors of the people. Person i wears a red hat if s_i is `R`, and a blue hat if s_i is `B`.

Determine if there are more people wearing a red hat than people wearing a blue hat.

Constraints

* 1 \leq N \leq 100
* |s| = N
* s_i is `R` or `B`.

Input

Input is given from Standard Input in the following format:


N
s


Output

If there are more people wearing a red hat than there are people wearing a blue hat, print `Yes`; otherwise, print `No`.

Examples

Input

4
RRBR


Output

Yes


Input

4
BRBR


Output

No
import java.math.BigInteger;
import java.util.*;

public class Main {
	
	private void doit(){
		Scanner sc = new Scanner(System.in);
		while(sc.hasNext()){
			int n = sc.nextInt();
			String s = sc.next();
			int b = 0;
			int r = 0;
			for(int i = 0; i < s.length(); i++){
				if(s.charAt(i) == 'R'){
					r++;
				}
				else{
					b++;
				}
			}
			
			if(r > b){
				System.out.println("Yes");
			}
			else {
				System.out.println("No");
			}
		}
	}
	
	private long gcd(long a, long b){
		if(b == 0)  return a;
		else        return gcd(b, a%b);
	}

	private void debug(Object... o) {
		System.out.println("debug = " + Arrays.deepToString(o));
	}

	public static void main(String[] args) {
		new Main().doit();
	}

}
