PROGRAMMING:Calculation 8

For Chinese people, 8 is a magic number, calculating the sum of 8 + 88 + 888 +... + 888... 888 (n 8, 5 < = n < = 10).
###Input format:
Enter an n value, 5 < = n < = 10.
###Output format:
Output the value of calculated sum in one line. If the value of n is less than 5 or greater than 10, the output is "error input".
###Input example:
```in
six
```
###Output example:
```out
nine hundred and eighty-seven thousand six hundred and forty-eight
```
###Input example:
``` in
twelve
```
###Output example:
``` out
Error Input
```







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