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: ['3283', 'i', 'd', '4707', 'V', 'y', '7749', '9079', '8503', 'C', '2833', '5899', '9359', '3707', '4711', '2249', '6955', '917', 'c', 'P', 'V', 'K', '7655']

3283, 9, 4, 4707, 22, 25, 7749, 9079, 8503, 3, 2833, 5899, 9359, 3707, 4711, 2249, 6955, 917, 3, 16, 22, 11, 7655