PROGRAMMING:Buy u disk (error correction version)
The IT association holds a program design competition to buy a USB flash disk as a prize. Please write a program to estimate the maximum number of U-disks that can be purchased according to the activity funds and U-disk unit price.
####Input format
>Activity expenses and unit price of USB flash disk
####Output format
>Maximum number of USB flash drives that can be purchased
####Input sample
```
660.8 47.2
```
####Output sample
```
fourteen
```
####Input sample 2
```in
504.9 19.8
```
####Output sample 2
```out
twenty-five
```
---
Requirement: consider the error of real number.
answer：If there is no answer, please comment
####Input format
>Activity expenses and unit price of USB flash disk
####Output format
>Maximum number of USB flash drives that can be purchased
####Input sample
```
660.8 47.2
```
####Output sample
```
fourteen
```
####Input sample 2
```in
504.9 19.8
```
####Output sample 2
```out
twenty-five
```
---
Requirement: consider the error of real number.
answer：If there is no answer, please comment