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: ['4761', 'W', '8045', '2735', 'T', '4211', 'E', '4281', 'D', 'x', 'Q', '7051', '3373', '2355', '6803', 'c', 'x', 'z', 'a', '2659', '6965', '5093', '11']

4761, 23, 8045, 2735, 20, 4211, 5, 4281, 4, 24, 17, 7051, 3373, 2355, 6803, 3, 24, 26, 1, 2659, 6965, 5093, 11