PROGRAMMING:Robot crossing bridge
It is known that each step of the robot can advance $$x $$meters, while the bridge is $$a $$meters long. The robot has to walk $$n $$steps to cross the bridge. Please write a program, input $$x $$and $$a $, calculate and output $$n $.
####Input format
>Real numbers $$x $$and $$a$$
####Output format
>Integer $$n$$
####Sample input 1
```in
0.72 41.04
```
####Sample output 1
```out
fifty-seven
```
####Sample input 2
```in
0.77 235.33
```
####Sample output 2
```out
three hundred and six
```
answer：If there is no answer, please comment
####Input format
>Real numbers $$x $$and $$a$$
####Output format
>Integer $$n$$
####Sample input 1
```in
0.72 41.04
```
####Sample output 1
```out
fifty-seven
```
####Sample input 2
```in
0.77 235.33
```
####Sample output 2
```out
three hundred and six
```
answer：If there is no answer, please comment