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: ['y', '1177', 'R', '4193', 'f', 'M', 'R', '3789', 'W', 'r', '8547', '2311', 'S', 'l', '203', '1085', '3443', 'L', '3655', '4485', 'p', '8215', 'k', '9091', 'l', 'c']

25, 1177, 18, 4193, 6, 13, 18, 3789, 23, 18, 8547, 2311, 19, 12, 203, 1085, 3443, 12, 3655, 4485, 16, 8215, 11, 9091, 12, 3