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: ['1365', '3685', '475', 'd', 'b', 'U', 'x', '779', '8315', '7405', '8515', '1421', '7527', '9593', 'p', 'b', '6859', 'L', '8733', '1167', 'i', '5567', '6677', 'o', '8899', 'M', 'q', 'o', 'B', '263', '4717', 'i', '4853', 'b', '9365', '2085', '6783']

1365, 3685, 475, 4, 2, 21, 24, 779, 8315, 7405, 8515, 1421, 7527, 9593, 16, 2, 6859, 12, 8733, 1167, 9, 5567, 6677, 15, 8899, 13, 17, 15, 2, 263, 4717, 9, 4853, 2, 9365, 2085, 6783