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: ['1895', 'g', 'a', 'L', 'x', '3229', '6819', 'J', 'j', '7601', 'k', '911', 'h', '5703', 'D', 'E', '2447', '45', '6341', 'e', 'k', 'j', 'E', '7783', '9249', '5527', 'I', '151', 'G', '7891', '1771']

1895, 7, 1, 12, 24, 3229, 6819, 10, 10, 7601, 11, 911, 8, 5703, 4, 5, 2447, 45, 6341, 5, 11, 10, 5, 7783, 9249, 5527, 9, 151, 7, 7891, 1771