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 JavaScript (node.js v5.12) (judge verdict: Runtime Error)

function main(input) {
    const row = input.split("\n")
    const n = parseInt(row[0])
    const s = row[1]
    let r = 0
    let b = 0
    for (let i = 0; i < s.length; i++) {
        const c = s.slice(i, i+1)
        if (c === 'R') r++
        if (c === 'B') b++
    }
    
    if (r > b) {
        console.log("Yes")
    } else {
        console.log("No")
    }
}

//*この行以降は編集しないでください（標準入出力から一度に読み込み、Mainを呼び出します）
main(require("fs").readFileSync("/dev/stdin", "utf8"));