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', '3919', '4133', '1331', 'd', '8477', 'x', 'x', '2847', '3309', '6111', '4923', '2719', 'k', 'J', 'V', 'h', '1049', 'L', '7043', 'y', '1859', 'w', 'Z', '7797', 'v', 'W', 'q', 'P', '1213', 'z', '2005', 't', 'D', '9689', '729']

10, 3919, 4133, 1331, 4, 8477, 24, 24, 2847, 3309, 6111, 4923, 2719, 11, 10, 22, 8, 1049, 12, 7043, 25, 1859, 23, 26, 7797, 22, 23, 17, 16, 1213, 26, 2005, 20, 4, 9689, 729