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: ['3779', '8333', '4219', 'i', 'V', '4337', 'O', '3905', 'b', '4395', '6877', 'N', 'E', '3993', 'o', 'i', 'F', 'b', 'M', 'f', '5471', '2131', '289', 'Q', '7591', 'z', '6517', '8459', '463', '6947', 'R', '2721', '4001', '709', '4191', '2127', '8193', '8091', 'h']

3779, 8333, 4219, 9, 22, 4337, 15, 3905, 2, 4395, 6877, 14, 5, 3993, 15, 9, 6, 2, 13, 6, 5471, 2131, 289, 17, 7591, 26, 6517, 8459, 463, 6947, 18, 2721, 4001, 709, 4191, 2127, 8193, 8091, 8