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: ['8889', '2689', 'h', '8239', '1761', 'J', '5959', '8789', 't', '5439', '1735', '6345', '2413', '6923', 'V', 'z', '4715', 'r', '1073', '163', '585', 'x']

8889, 2689, 8, 8239, 1761, 10, 5959, 8789, 20, 5439, 1735, 6345, 2413, 6923, 22, 26, 4715, 18, 1073, 163, 585, 24