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: ['h', '7665', '8645', '2303', '5983', '8713', 'M', '2955', 'f', '7333', 'I', 't', '7571', '8323', '6553', 'i', 'f', 'I', '7439', '869', '2593', '8531', 'x', '633', '2585', 'C', 'o', '2981', 'F', 'b', '6235']

8, 7665, 8645, 2303, 5983, 8713, 13, 2955, 6, 7333, 9, 20, 7571, 8323, 6553, 9, 6, 9, 7439, 869, 2593, 8531, 24, 633, 2585, 3, 15, 2981, 6, 2, 6235