PROGRAMMING:Wangzai honeymoon

Wang Tsai, the future Sheikh of the United Arab Emirates, took his daughter-in-law last week with the help of his classmates. The chief was very happy and gave them a lot of money for their honeymoon. This time they chose to visit the island of Obi, but the money given by the chief was locked in the treasure chest. It's known that the chief gave 20 billion to 20 billion.
If the money in the treasure box is more than 10 billion, it will be directly exported to "go to Paris!"
If the money in the treasure chest is between 9 billion and 10 billion, the code name is a
If the money in the treasure chest is 8-8.9 billion, the code name is B
If the money in the treasure chest is 7-7.9 billion, code name is C
If the money in the treasure chest is 6-6.9 billion, the code name is d
If the money in the treasure box is between 5.9 billion and 5.9 billion, it will be directly exported as "go to Shaoxing!"
###Input format:
Input the king's money n billion (0-20 billion)
###Output format:
Output code
###Input example:
Here is a set of inputs. For example:
```in
ninety-nine
eighty-three
seventy-one
twelve
```
###Output example:
The corresponding output is given here. For example:
```out
A
B
C
GO TO SHAOXING !
```







answer：If there is no answer, please comment