# coding: utf-8
s = input()
key = 'keyence'
key_r = 'ecneyek'
j = 0
for i in key:
    if s[j] == i:
        j += 1
    else:
        break
k = 1
for i in key_r:
    if s[-k] == i:
        k += 1
    else:
        break

s = s[:j] + s[-k+1:]
if s == key:
    print('YES')
elif len(s) == 14:
    print('YES')
else:
    print('NO')
