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: ['4149', 'G', 'l', 'J', 'G', 'J', 'N', 'Y', 'x', '5451', 'Q', 'C', '179', '6079', 'A', 'P', '477', '3201', 'U', '1267', '1457', 'Z', 'w', '3077', 'i', '6241', 't', 'D', '1451', 'w', '2207', '1841', '4603', 'F', 'x']

4149, 7, 12, 10, 7, 10, 14, 25, 24, 5451, 17, 3, 179, 6079, 1, 16, 477, 3201, 21, 1267, 1457, 26, 23, 3077, 9, 6241, 20, 4, 1451, 23, 2207, 1841, 4603, 6, 24