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.

['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']
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

['R', '4841', '221', 'p', 'K', '8845', '1765', '7773', 'D', '9859', '8781', 'n', 'J', 's', 'N', '221', '6879', '1257', 'a', 'O', '393', '7189']
18, 4841, 221, 16, 11, 8845, 1765, 7773, 4, 9859, 8781, 14, 10, 19, 14, 221, 6879, 1257, 1, 15, 393, 7189

['Y', '7483', 'y', 'q', 'r', 'L', '4103', 'j', '6623', '7271', '5829', '5551', 'W', 'R', '8885', 'h', 'O', '137', 'r', '2221', 'K', '3735', '395', 'k', '253', '4171', '6897', 'b', 's', '3697', 'J']

25, 7483, 25, 17, 18, 12, 4103, 10, 6623, 7271, 5829, 5551, 23, 18, 8885, 8, 15, 137, 18, 2221, 11, 3735, 395, 11, 253, 4171, 6897, 2, 19, 3697, 10