n = "keyence "
s = input()
cnt = 0


for i in s:
    if n[0] == i:
        n = n[1:]
        if cnt > 0:
            cnt = -1
    elif n[0] != i:
        if cnt == -1:
            break
        cnt += 1

if n == " ":
    print("YES")
else:
    print("NO")