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.

[EX Q]: ['8623', '1535', '2699', 'e', '1463', '279']
[EX A]: 8623, 1535, 2699, 5, 1463, 279

[EX Q]: ['L', 'M', '9547', '9787', 'C', '6993', '5623', 'N', 'x', '3495', '6071', '5413', 'Y', '5191', '9621', 'X', '8557', '7949', '5691', 'u', '7527', '621', '6899', 'E', 'K', 'a']
[EX A]: 12, 13, 9547, 9787, 3, 6993, 5623, 14, 24, 3495, 6071, 5413, 25, 5191, 9621, 24, 8557, 7949, 5691, 21, 7527, 621, 6899, 5, 11, 1

[EX Q]: ['v', 'X', 'i', '8627', 'U', 'L', 'L', 't', '717', 'O', 'a', '4009', '7839', '6979', '2979', 'e', 'n', 'N', '5517', 'v', '143', '4041', 'h', 'F', 'Q', 'U', 'i', 'X', 'y', '7713', 'X', 'F', 'H', 'B', 'X', 'b', '2815', '2495', 'D', '5307']
[EX A]:
22, 24, 9, 8627, 21, 12, 12, 20, 717, 15, 1, 4009, 7839, 6979, 2979, 5, 14, 14, 5517, 22, 143, 4041, 8, 6, 17, 21, 9, 24, 25, 7713, 24, 6, 8, 2, 24, 2, 2815, 2495, 4, 5307