Happy or Sad

Time limit1sMemory limit256 MB

Summary

Count the happy (:-)) and sad (:-( ) emoticons in the message and print happy, sad, unsure, or none.

Level: Easy1 of 10
Topics: String
Solved: No attempts yet

Problem

Seungyeop often puts emoticons in his text messages to show how he feels. Each emoticon he uses is three characters stuck together: :-) for a happy face and :-( for a sad face.

Hyeseong thinks the emoticons are a fake-cute habit and dislikes them, so she wants a program that reads a message from Seungyeop and reports only its overall mood.

Input

The first line holds between 1 and 255 characters. The line can contain spaces.

Output

Print one line according to these rules.

If the line has no emoticon at all, print none.
If the number of happy emoticons equals the number of sad emoticons, print unsure.
If there are more happy emoticons than sad ones, print happy.
If there are more sad emoticons than happy ones, print sad.

Examples10

Example 1

Input

How are you :-) doing :-( today :-)?

Expected output

happy

Example 2
Input
```
:)
```
Expected output
```
none
```
Example 3
Input
```
This:-(is str:-(:-(ange te:-)xt.
```
Expected output
```
sad
```
Example 4
Input
```
:-):-(
```
Expected output
```
unsure
```
Example 5
Input
```
:-:-)
```
Expected output
```
happy
```
Example 6
Input
```
):-  :(- -:)
```
Expected output
```
none
```
Example 7
Input
```
:-(
```
Expected output
```
sad
```
Example 8
Input
```
a
```
Expected output
```
none
```

Example 9

Input

:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-):-(:-)

Expected output

happy

Example 10

Input

no emoticons here, just plain text with 100% mood and (parentheses)

Expected output

none