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: ['8811', '2469', 'U', 'k', 'S', '2885', '3971', '575', '7613', 'g', 'e', '2323', '2415', 'a', 'r', 'V', 'b', '6659', '4763', '1157', '9837', '7157', '739', '4443', '5809', '6525', 'f', '2247', '581', 'P', 'Q', 'J', '2353', '1685', '7705', 'v', '5789']

8811, 2469, 21, 11, 19, 2885, 3971, 575, 7613, 7, 5, 2323, 2415, 1, 18, 22, 2, 6659, 4763, 1157, 9837, 7157, 739, 4443, 5809, 6525, 6, 2247, 581, 16, 17, 10, 2353, 1685, 7705, 22, 5789