## Minutes Before the New Year

New Year is coming and you are excited to know how many minutes remain before the New Year. You know that currently the clock shows **ℎ** hours and **𝑚** minutes, where **0≤ℎℎ<24** and **0≤𝑚𝑚<60**. 

We use 24-hour time format!

Your task is to find the number of minutes before the New Year. You know that New Year comes when the clock shows 0
hours and 0 minutes.


### Input
```
23 55
23 0
0 1
4 20
23 59
```

### Output
```
5
60
1439
1180
1
```