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: ['1995', '9269', '8585', '7905', 'V', 'O', '8875', 'A', '3087', 'R', 's', 'S', 'I', '6555', '5585', '7371', '2619', 'H', '681', '6347', 'd', '4935', '3923', 'b', '1935', 'p', 'B', 'x', '9251', '6117', 'c', 'j', 'Y', '7073', 'r', 'X', 'G', '9515']

1995, 9269, 8585, 7905, 22, 15, 8875, 1, 3087, 18, 19, 19, 9, 6555, 5585, 7371, 2619, 8, 681, 6347, 4, 4935, 3923, 2, 1935, 16, 2, 24, 9251, 6117, 3, 10, 25, 7073, 18, 24, 7, 9515