Detailed Instructions: 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.
Q: ['6877', 'l', 'd', 'n', '489', '1817', '2877', '883', '6965', 'L', '2219', 'A', '5233', 'G', 'Z', '219', 'O', 'j', 'T', '607', 'd', '4563', 'M', '7059', '4253', 'G', 'y', '5203', '3319', '5191']
A:
6877, 12, 4, 14, 489, 1817, 2877, 883, 6965, 12, 2219, 1, 5233, 7, 26, 219, 15, 10, 20, 607, 4, 4563, 13, 7059, 4253, 7, 25, 5203, 3319, 5191