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: ['q', '4877', '9001', 'x', 'j', '6123', 'H', '7739', 'l', 'e', '9853', 'b', '3155', '213', 'Z', 'B', '5533', 'y', 'l', '657', '6835', 'V', '3125', '689', '419', 's', '4789', '4977', 'v', 'B', '3277', '3309', '9039', '333']

17, 4877, 9001, 24, 10, 6123, 8, 7739, 12, 5, 9853, 2, 3155, 213, 26, 2, 5533, 25, 12, 657, 6835, 22, 3125, 689, 419, 19, 4789, 4977, 22, 2, 3277, 3309, 9039, 333