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 (Python):

from collections import defaultdict, deque
from heapq import heappush, heappop
from itertools import permutations, accumulate
import sys
import math
import bisect
def LI(): return [int(x) for x in sys.stdin.readline().split()]
def I(): return int(sys.stdin.readline())
def LS():return [list(x) for x in sys.stdin.readline().split()]
def S():
    res = list(sys.stdin.readline())
    if res[-1] == "\n":
        return res[:-1]
    return res
def IR(n):
    return [I() for i in range(n)]
def LIR(n):
    return [LI() for i in range(n)]
def SR(n):
    return [S() for i in range(n)]
def LSR(n):
    return [LS() for i in range(n)]

sys.setrecursionlimit(1000000)
mod = 1000000007

def solve():
    s = input()
    if s[2] == s[3] and s[4] == s[5]:
        print("Yes")
    else:
        print("No")
    return


if __name__ == "__main__":
    solve()