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', 'r', '5675', 'z', '7187', 'v', 'Z', 'n', 'B', '3127', '8155', '8565', '2755', '5189', 'Q']

13, 18, 5675, 26, 7187, 22, 26, 14, 2, 3127, 8155, 8565, 2755, 5189, 17