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: ['6435', 'D', '2441', 'G', 'w', 'T', 'r', '3117', 'A', '1615', '5331', 'M', '9849', '6445', 'y', '9471', '5573', 'W', '8825', 'd', '1759', 'V', '6899', 't', '9197', 'T', 'Z', 'S', 'M', '2163', '1381', 'q', '4675', 'q', '7041']

6435, 4, 2441, 7, 23, 20, 18, 3117, 1, 1615, 5331, 13, 9849, 6445, 25, 9471, 5573, 23, 8825, 4, 1759, 22, 6899, 20, 9197, 20, 26, 19, 13, 2163, 1381, 17, 4675, 17, 7041