Definition: In this task, you are given an input list A. You need to convert all the alphabets in the list with a number representing their position in the English alphabet. E.g., replace A by 1, B by 2, a by 1, b by 2, and so on.
Input: ['9647', '8425', 'a', 'w', 'p', '2177', 's', 'a', 'U', '5085']

9647, 8425, 1, 23, 16, 2177, 19, 1, 21, 5085