Score : 100 points
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 is given from Standard Input in the following format:
S
If S is coffee-like, print Yes
; otherwise, print No
.
sippuu
Yes
In sippuu
, the 3-rd and 4-th characters are equal, and the 5-th and 6-th characters are also equal.
iphone
No
coffee
Yes