I want to subtract the values inside of two lists.

```
a = [1,2,3,4]
b = [1,0,1,5]
c = a - b
#c should be = [0,2,2,-1]

```

The answer to [How can I add the corresponding elements of several lists of numbers?](https://stackoverflow.com/questions/11280536/how-can-i-add-the-corresponding-elements-of-several-lists-of-numbers) is simular, but alot of the answers on it are only applicable to adding.

Please answer with how to subtract, if possible.