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: ['5771', '7559', '8313', 'X', '2195', 'A', '8207', 'l', 'g', 'M', 'q', '1031', '8863', '3787', '5425', 'n', '4363', 'V', 'x', 'S', '4117', '4223', '5199', 'm', 'J', '6427', '6811', 'Z', 'M', 'd', '9603', '2737', 'z']

5771, 7559, 8313, 24, 2195, 1, 8207, 12, 7, 13, 17, 1031, 8863, 3787, 5425, 14, 4363, 22, 24, 19, 4117, 4223, 5199, 13, 10, 6427, 6811, 26, 13, 4, 9603, 2737, 26