Problem:
Score : 100 points

Problem Statement

A string of length 6 consisting of lowercase English letters is said to be coffee-like if and only if its 3-rd and 4-th characters are equal and its 5-th and 6-th characters are also equal.

Given a string S, determine whether it is coffee-like.

Constraints

S is a string of length 6 consisting of lowercase English letters.

Input

Input is given from Standard Input in the following format:

S

Output

If S is coffee-like, print Yes; otherwise, print No.

Sample Input 1

sippuu

Sample Output 1

Yes

In sippuu, the 3-rd and 4-th characters are equal, and the 5-th and 6-th characters are also equal.

Sample Input 2

iphone

Sample Output 2

No

Sample Input 3

coffee

Sample Output 3

Yes

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Main main = new Main();
        main.run();
    }
    
    // 変数一覧
    String s;

    public void run() {
        // 入力情報取得
        Scanner sc = new Scanner(System.in);
        s = sc.next();
        sc.close();

        // 解答処理
        solve();
    }
    private void solve() {
        if ((s.substring(2, 3).equals(s.substring(3, 4)))
                && s.substring(4, 5).equals(s.substring(5, 6))) {
                    System.out.println("Yes");
                } else {
                    System.out.println("No");
        }
    }
}