In this task, you will be given a list.  The list is several integers and letters separated with a comma, written within a []. You can create new lists by dropping one of the items in the input list. Your task is to write a list containing all the possible lists you can make by dropping one item from the input list. For example, if the input list contains two items, you can drop one of the items each time. So the output should be a list comprising two inner lists that you have created by decreasing the items.

Let me give you an example: ['3', 'u', 'W', '8', 'j']
The answer to this example can be: [['3', 'u', 'W', '8'], ['3', 'u', 'W', 'j'], ['3', 'u', '8', 'j'], ['3', 'W', '8', 'j'], ['u', 'W', '8', 'j']]
Here is why: The output is a list of length 5, containing lists of length 4. Each inner list is created by dropping one item if the input list. So this is a good example.

OK. solve this:
['7', 'x', 'i', 'S']
Answer:
[['7', 'x', 'i'], ['7', 'x', 'S'], ['7', 'i', 'S'], ['x', 'i', 'S']]