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.

['4365', 'F', '9241', '6293', 'm', '5235', 'D', 'O', '4819', 'B', 'k', '719', '9207', '4331', '7105', '9839', '2301', 'y', '1563', 'J', '5363', '6163', '7381']
4365, 6, 9241, 6293, 13, 5235, 4, 15, 4819, 2, 11, 719, 9207, 4331, 7105, 9839, 2301, 25, 1563, 10, 5363, 6163, 7381