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: ['m', 'G', 'e', 'y', '5063', 'f', '8583', 'T', '8229', '107', 's', '2695', '2851', 't', '5701', 'G', '7795', '9777', '6565', 'u', 'o', 'P', 't', 'N', '6455', '5299', '6579', 'r', '6489', 'f', '4881', 'e', 'M', 'T']

13, 7, 5, 25, 5063, 6, 8583, 20, 8229, 107, 19, 2695, 2851, 20, 5701, 7, 7795, 9777, 6565, 21, 15, 16, 20, 14, 6455, 5299, 6579, 18, 6489, 6, 4881, 5, 13, 20