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: ['8137', 'v', 'z', '4939', 'u', 'h', 'J', 'm', '1077', 'B', 'w', 'q', 'O', '7303', 'g', '467', 'F', 'a', 'w', 'S', '4741', '2061', '8027', '1141', '5031', 'E', '8035', 'B', 'u', 'T', 'R', 'E']

8137, 22, 26, 4939, 21, 8, 10, 13, 1077, 2, 23, 17, 15, 7303, 7, 467, 6, 1, 23, 19, 4741, 2061, 8027, 1141, 5031, 5, 8035, 2, 21, 20, 18, 5