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: ['t', 'y', '7033', '5867', '1247', 'q', '19', 'o', 'e', 'P', 'b', 'c', '7059', 'X', '8033', '1579', 't', '9239', '6245', 'o', 'U', 'p']

20, 25, 7033, 5867, 1247, 17, 19, 15, 5, 16, 2, 3, 7059, 24, 8033, 1579, 20, 9239, 6245, 15, 21, 16