import re
if S.startswith('k') and S.endswith('eyence'):
    print('YES')
elif S.startswith('ke') and S.endswith('yence'):
    print('YES')
elif S.startswith('key') and S.endswith('ence'):
    print('YES')
elif S.startswith('keye') and S.endswith('nce'):
    print('YES')
elif S.startswith('keyen') and S.endswith('ce'):
    print('YES')
elif S.startswith('keyenc') and S.endswith('e'):
    print('YES')
elif S == 'keyence':
    print('YES')
else:
    print('NO')