x = input().split()[0]

test = "keyence"
#  はじめ文字から調べる
i = 0
for y in x:
  if y in test[i]:
    i += 1
  else:
    break

k = len(test) - 1
for j in range(len(x)):
  y = x[-(j+1)]
  if y in test[k]:
    k -= 1
  else:
    break

if i == k+1:
  print("YES")
else:
  print("NO")