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: ['W', 'L', '9849', '4795', 'k', 'r', '8153', '8389', '9325', 'J', 'K', 'V', '6599', '8677', 'R', '5815', '2357', 'V', 'j', '4865', 'i']

23, 12, 9849, 4795, 11, 18, 8153, 8389, 9325, 10, 11, 22, 6599, 8677, 18, 5815, 2357, 22, 10, 4865, 9