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', 'A', '1665', 'N', 'w', 'f', 'n', '607', '1897', 'h', 'b', 'I', '9807', 'h', '3333', '9279', 'f', '4355', 'z', '3789', 'K', 'p', 'v', 'V', '8333', '4865', '5633']

3, 1, 1665, 14, 23, 6, 14, 607, 1897, 8, 2, 9, 9807, 8, 3333, 9279, 6, 4355, 26, 3789, 11, 16, 22, 22, 8333, 4865, 5633