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: ['g', '5699', '2929', 'e', 'H', 'q', 'u', '791', 'P', 'M', '3743', '5957', 'g', 'x', '1193', 'b', 'p', 'S', 'F', 'B', 'S', 'C', 'H', '3145', '2467', 'e', '1669', '4417', '1045', 'Q']

7, 5699, 2929, 5, 8, 17, 21, 791, 16, 13, 3743, 5957, 7, 24, 1193, 2, 16, 19, 6, 2, 19, 3, 8, 3145, 2467, 5, 1669, 4417, 1045, 17