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.

['2621', '8811', '3613', '7469', 'O', 'P', '3429', '6091', 'l', '6905', '8189', '8933', 'l', '1745', 'c', 'a', '8665', '9733', '8263', 'X', '5065', 'W', '1837', 'K', 'k', '519', '7623']
2621, 8811, 3613, 7469, 15, 16, 3429, 6091, 12, 6905, 8189, 8933, 12, 1745, 3, 1, 8665, 9733, 8263, 24, 5065, 23, 1837, 11, 11, 519, 7623

['7033', '8333', 'n', 'q', '7327', 'M', '4195', 'x', '3573', 'W', 'V', 'w', 'Q', 'J', '6513', '5789', '785', '1061', '8721', 't', '8523', '4707', '7145', 'J', 'o', '5913', '3481', '4973', 'B', 'y', '4077', 'H', '761', '8405', '987']
7033, 8333, 14, 17, 7327, 13, 4195, 24, 3573, 23, 22, 23, 17, 10, 6513, 5789, 785, 1061, 8721, 20, 8523, 4707, 7145, 10, 15, 5913, 3481, 4973, 2, 25, 4077, 8, 761, 8405, 987

['z', '1813', 'N', 's', 'u', 'd', '3925', 'x', 'G', 'h', 'B', 'M', 'j', '5389', '3473', '4101', 'F', '3995', 'r', 'H', '1841', '8865', 'N', '3025', '8387', 'r', 'T', 'e', 'a', 'A']

26, 1813, 14, 19, 21, 4, 3925, 24, 7, 8, 2, 13, 10, 5389, 3473, 4101, 6, 3995, 18, 8, 1841, 8865, 14, 3025, 8387, 18, 20, 5, 1, 1