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.

Input

Input is given from Standard Input in the following format:
S

Output

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

Constraints

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

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

见题面 Input 部分

见题面 Output 部分