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: ['5653', '4621', '11', '7059', 'W', 'I', 'v', '8235', 'y', '3713', '4033', '4339', '9355', '1065', 'h', '1653', 'Q', 'a', '9473', 'J', 't', '4869', '2659', '1913']

5653, 4621, 11, 7059, 23, 9, 22, 8235, 25, 3713, 4033, 4339, 9355, 1065, 8, 1653, 17, 1, 9473, 10, 20, 4869, 2659, 1913