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]: ['j', 'f', 'u', '5771', 'M', 'm', 'B', 'C', 'w', 'J', '8553', 'N', 'N', '9059', 'r', 'N', '9457']
[EX A]: 10, 6, 21, 5771, 13, 13, 2, 3, 23, 10, 8553, 14, 14, 9059, 18, 14, 9457

[EX Q]: ['1705', '2311', 'l', 't', '9673']
[EX A]: 1705, 2311, 12, 20, 9673

[EX Q]: ['s', 'p', 'P', 's', '2649', 'K', '7977', 'B', 'B', 's', '1207', 'F', '3009', '7365', 'W', '1705']
[EX A]:
19, 16, 16, 19, 2649, 11, 7977, 2, 2, 19, 1207, 6, 3009, 7365, 23, 1705