PROGRAMMING:List subtraction

Enter two lists and delete some elements in list 2 in list 1.
###Input format:
Enter list 1 and list 2.
###Output format:
Output processed list 1.
###Input example:
Here is a set of inputs. For example:
```in
['Red ',' green ',' Blue ',' Red ',' yellow ']
['Blue ',' Red ',' Black ',' Blue ',' white ']
```
###Output example:
The corresponding output is given here. For example:
```out
['green ','yellow']
```







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