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', '3517', '4033', 'o', 'G', 'g', 'Z', 'm', '7205', '2313', 'E', 'R', '1993', '4361', '5417', 'a', 'V', 'V', 'q', 'G', '7367', 'k', 'X', 'z', '5321', 'b', 's', 'A', '4985', '3789', 'T', '5289', 'l', '9545', '6323', '7027', 'X', 'c', 's']

13, 3517, 4033, 15, 7, 7, 26, 13, 7205, 2313, 5, 18, 1993, 4361, 5417, 1, 22, 22, 17, 7, 7367, 11, 24, 26, 5321, 2, 19, 1, 4985, 3789, 20, 5289, 12, 9545, 6323, 7027, 24, 3, 19