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: ['q', 'g', 'C', 'I', 'k', 't', '3', '5563', 'v', '3215', 'x', '4271', '4063', 'Y', 'S', 'g', '9725', 'v', 'R', '7041', '2303', 'O', 'V', '2203', 'f', 'X']

17, 7, 3, 9, 11, 20, 3, 5563, 22, 3215, 24, 4271, 4063, 25, 19, 7, 9725, 22, 18, 7041, 2303, 15, 22, 2203, 6, 24