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: ['J', '675', '6023', '8825', '3199', 'o', '3785', '3513', '8681', 'R', 'A', '577', 'F', 'u', 'Q', '9777', '9593', 'e', '8667', 'b', 'L', 'u', 'H', 'V', '1515', 'r', '3973', 'H', '2363', 'W', 'I', '7629', '8529', '9119', 'v', '3671']

10, 675, 6023, 8825, 3199, 15, 3785, 3513, 8681, 18, 1, 577, 6, 21, 17, 9777, 9593, 5, 8667, 2, 12, 21, 8, 22, 1515, 18, 3973, 8, 2363, 23, 9, 7629, 8529, 9119, 22, 3671