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: ['L', '8633', 'i', '3515', 'Q', '3345', '39', 'e', '4561', '7627', '9023', 'V', '4861', 'v', 'G', '9199', 'T', '5967', 'F', 'A', '6649', 'y', '2927', '4289', 'y', '5927', '47', '2013', '4985', '5381', 'a', '7869', '7499', 'g', '3475', '2425', '4475']

12, 8633, 9, 3515, 17, 3345, 39, 5, 4561, 7627, 9023, 22, 4861, 22, 7, 9199, 20, 5967, 6, 1, 6649, 25, 2927, 4289, 25, 5927, 47, 2013, 4985, 5381, 1, 7869, 7499, 7, 3475, 2425, 4475