Clock shows 'h' hours, 'm' minutes and 's' seconds after midnight.
Your task is to make 'Past' function which returns time converted to milliseconds.
## Example:
```python
past(0, 1, 1) == 61000
```
Input constraints: `0 <= h <= 23`, `0 <= m <= 59`, `0 <= s <= 59`
def past(h, m, s):
    
    h1=h*3600
    
    m1=m*60

    x=(h1+m1+s)*1000
    return x
def past(h, m, s):
    
    h1=h*3600
    
    m1=m*60

    x=(h1+m1+s)*1000
    return x