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]: ['a', 'K', '9581', 'v', 'p', 'I', '2579', '7467', '2267', '3839', '9615', 'k', 'l', 'X', 'I']
[EX A]: 1, 11, 9581, 22, 16, 9, 2579, 7467, 2267, 3839, 9615, 11, 12, 24, 9

[EX Q]: ['1533', '8627', '2455', 'W', 'Q', 'v', 'Y', 'F', '135']
[EX A]: 1533, 8627, 2455, 23, 17, 22, 25, 6, 135

[EX Q]: ['9815', 'u', '8273']
[EX A]:
9815, 21, 8273