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]: ['S', 'h', 'O', 'j', 'f', 'Q', 'o', 's', 'r', '5617', '6939']
[EX A]: 19, 8, 15, 10, 6, 17, 15, 19, 18, 5617, 6939

[EX Q]: ['7511', 'c', '5999', 'j', '2265', 'E', '9905', '1861', '8743', '873']
[EX A]: 7511, 3, 5999, 10, 2265, 5, 9905, 1861, 8743, 873

[EX Q]: ['4769', 'N', 'k', '405', '3239', '9395', '175', '4623', '7927', '2827', '5729', 'R', '8179', '5635']
[EX A]:
4769, 14, 11, 405, 3239, 9395, 175, 4623, 7927, 2827, 5729, 18, 8179, 5635