s=input()
t='keyence'
ans=[]
if s == t:
    print('YES')
else:
    for i in range(0,8):
        try:
            if s.index(t[0:i])+s[i:].index(t[i:7])>0:
                ans.append(1)
            else:
                ans.append(0)
        except:
            ans.append(0)
    print('YES' if any(ans) else 'NO')