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: ['C', 'b', '5661', 'i', 'M', '8383', 'E', '561', 'T', 'r', '2451', '5111', '2953', '5239', '2123', '7077', '93', '8539', 'o', 'j', '2825', '6355', 'r', 'g', 'T', 'D', 'K', '1027', '1451', 'Z']

3, 2, 5661, 9, 13, 8383, 5, 561, 20, 18, 2451, 5111, 2953, 5239, 2123, 7077, 93, 8539, 15, 10, 2825, 6355, 18, 7, 20, 4, 11, 1027, 1451, 26