Home

Contest: Task: Related: TaskB

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