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.

[Q]: ['1107', 'C', '5921', '7815', '1509', 'l']
[A]: 1107, 3, 5921, 7815, 1509, 12


[Q]: ['Y', 'N', '6675', '7451', '5999', 'G']
[A]: 25, 14, 6675, 7451, 5999, 7


[Q]: ['m', '3899', '8035', '2917', 'I', '2755', 'O', '9417']
[A]:
13, 3899, 8035, 2917, 9, 2755, 15, 9417