PROGRAMMING:Buy u disk

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 1
```
807.5 47.5
```
####Output sample 1
```
seventeen
```
####Input sample 2
```in
504.9 19.8
```
####Output sample 2
```out
twenty-five
```







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