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: ['5017', 'g', 'R', '5675', '2333', 'P', 'B', 'a', '2195', 'B', 'B', 'V', '3949', '8327', 'N', '5093', 'U', '2669', 'X', '3541', '5489', '6557', 't', 'K', '9007', '5939', 'D', 'z']

5017, 7, 18, 5675, 2333, 16, 2, 1, 2195, 2, 2, 22, 3949, 8327, 14, 5093, 21, 2669, 24, 3541, 5489, 6557, 20, 11, 9007, 5939, 4, 26