PROGRAMMING:Output reverse order number

Input a positive integer n, output its reverse order number. The reverse order number of n is the number that reverses the order of N digits. For example, the reverse order number of 700 is 7705 and the reverse order number is 507.
###Input example:
```in
eighteen thousand two hundred and ninety-nine
```
###Output example:
```out
ninety-nine thousand two hundred and eighty-one
```
###Input example:
```in
seven thousand
```
###Output example:
```out
seven
```







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