Problem:
Score : 200 points

Problem Statement

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.

Sample Input 1

4
RRBR

Sample Output 1

Yes

There are three people wearing a red hat, and one person wearing a blue hat.

Since there are more people wearing a red hat than people wearing a blue hat, the answer is Yes.

Sample Input 2

4
BRBR

Sample Output 2

No

There are two people wearing a red hat, and two people wearing a blue hat.

Since there are as many people wearing a red hat as people wearing a blue hat, the answer is No.

Solution in PHP7 (7.0.15) (judge verdict: Accepted)

<?php

$n = (int)trim(fgets(STDIN));
$s = trim(fgets(STDIN));

$red = 0;
$blue = 0;
for ($i=0; $i < $n; $i++) { 
	if ($s[$i] == 'R') {
		++$red;
	}else{
		++$blue;
	}
}
if ($red > $blue) {
	echo 'Yes';
}else{
	echo "No";
}