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]: ['H', 'f']
[EX A]: 8, 6

[EX Q]: ['J', '6243', 'G', 'V', 'K', '6277', 'c', '9637', 'B', 'i', 'U', '3459', 'L']
[EX A]: 10, 6243, 7, 22, 11, 6277, 3, 9637, 2, 9, 21, 3459, 12

[EX Q]: ['a', '4019', '3263', '5351', '1489', '6401', '3537', 'u', '9731', 'U', '5129', '9067', '7289']
[EX A]:
1, 4019, 3263, 5351, 1489, 6401, 3537, 21, 9731, 21, 5129, 9067, 7289