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: ['1367', '511', 'f', 'B', '619', '7787', '3175', '3097', 'j', '1477', '3645', 'X', 'X', 'J', '2373', 'c', 'Z', '5043', 't', '1211', 'r', '75', 'L', 'i', 'q', '5963', '3903', 't', '5063', '775', '8293', '5053', 'n', '6835', 'w', 'q', '8689', '9607', 'u']

1367, 511, 6, 2, 619, 7787, 3175, 3097, 10, 1477, 3645, 24, 24, 10, 2373, 3, 26, 5043, 20, 1211, 18, 75, 12, 9, 17, 5963, 3903, 20, 5063, 775, 8293, 5053, 14, 6835, 23, 17, 8689, 9607, 21