Rick

Read one line and print NO if it exactly matches one of six given phrases, otherwise print YES.

Easy2StringImplementationInterviewNo attempts yetTime limit1sMemory limit256 MB

Description

Examples2

Problem

In the song Never Gonna Give You Up, Rick said he would never do the following six actions.

Give you up
Let you down
Run around and desert you
Make you cry
Say goodbye
Tell a lie and hurt you

You are given one action on a single line. If that line is exactly one of the six strings above, including letter case, it is an action Rick does not do. Any other string is an action Rick can do.

Input

The input is one line: the action. It consists of letters and spaces only. There is no space before the first word or after the last word, and there is exactly one space between words. The length of the input is at most $100$ .

Output

Print YES if Rick can do the action, and NO if he does not do it.