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: ['x', '7105', '3943', 'b', '5535', '9335', '1079', '471', '9661', 'K', 'u', 'd', 'f', '6585', 'y', '333', '9521', '8799', 'j', '7673', '9695', 'k', '7449', '9435', 'j', '6583', '9917', '1313', '3983']

24, 7105, 3943, 2, 5535, 9335, 1079, 471, 9661, 11, 21, 4, 6, 6585, 25, 333, 9521, 8799, 10, 7673, 9695, 11, 7449, 9435, 10, 6583, 9917, 1313, 3983