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: ['5305', '8549', 'h', 'C', 'L', 'V', '8363', 'n', '4963', '2063', 'k', '8041', '6877', 'I', '6979', '1593', 'M']

5305, 8549, 8, 3, 12, 22, 8363, 14, 4963, 2063, 11, 8041, 6877, 9, 6979, 1593, 13