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: ['2289', 'N', 'O', 'q', '1535', 'I', '5923', 'N', 'k', 'F', '7679', '9833', '1541', '2303', 'Y', 'k', 'N', 'A', '4343', 'L', 'd', 'H', '4291', '9043', '6425', '8989', 'o', '3745', '3465', '3291', '9589', '8163', '1177', '3971', '6697', 'r', 'D', 'd', 'n']

2289, 14, 15, 17, 1535, 9, 5923, 14, 11, 6, 7679, 9833, 1541, 2303, 25, 11, 14, 1, 4343, 12, 4, 8, 4291, 9043, 6425, 8989, 15, 3745, 3465, 3291, 9589, 8163, 1177, 3971, 6697, 18, 4, 4, 14