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: ['2285', '3197', '5875', '6949', '663', '445', 'T', 'K', '625', 'C', 'p', '1663', 'I', '3603', '9749', 'h', 'I', '6179', 'o', '9329', '2993', 'B', '9879', 'f', 'N', 'c', '4579', 'd', '9593', 'p', '6121', 'm', '1751', 'j', 'r', '5835', 'n', '9861', '9171', 'f']

2285, 3197, 5875, 6949, 663, 445, 20, 11, 625, 3, 16, 1663, 9, 3603, 9749, 8, 9, 6179, 15, 9329, 2993, 2, 9879, 6, 14, 3, 4579, 4, 9593, 16, 6121, 13, 1751, 10, 18, 5835, 14, 9861, 9171, 6