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: ['7225', '343', 'l', '855', 'g', '9705', 'G', '4467', 'P', 's', 'C', 'f', '8083', 'C', '6333', 'S', '5771', 'A', '5107', '8903', '1095', 'e', 'c', '9007', 'O', '7169', 'K', '587', '8227', 'x', 't', '323']

7225, 343, 12, 855, 7, 9705, 7, 4467, 16, 19, 3, 6, 8083, 3, 6333, 19, 5771, 1, 5107, 8903, 1095, 5, 3, 9007, 15, 7169, 11, 587, 8227, 24, 20, 323