Score : 200 points
A string is called a KEYENCE string when it can be changed to keyence
by removing its contiguous substring (possibly empty) only once.
Given a string S consisting of lowercase English letters, determine if S is a KEYENCE string.
Input is given from Standard Input in the following format:
S
If S is a KEYENCE string, print YES
; otherwise, print NO
.
keyofscience
YES
keyence
is an abbreviation of key of science
.
mpyszsbznf
NO
ashlfyha
NO
keyence
YES