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: ['89', 'e', '7479', '7073', '3977', '8913', '7427', '6357', 'P', 'M', '2021', 'a', 'J', 'Z', 't', 'g', 'L', 'A', '6629', '1599', 'v', 'O', '3155']

89, 5, 7479, 7073, 3977, 8913, 7427, 6357, 16, 13, 2021, 1, 10, 26, 20, 7, 12, 1, 6629, 1599, 22, 15, 3155