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: ['w', 'a', '5813', '2087', 'P', '8051', 'H', 'M', '5863', '7423', '8007', 'C', 'g', '6673', '1525', 'B', '5025', 'C', '9865', '4571', '1637', '9701']

23, 1, 5813, 2087, 16, 8051, 8, 13, 5863, 7423, 8007, 3, 7, 6673, 1525, 2, 5025, 3, 9865, 4571, 1637, 9701