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]: ['7471', 'k', '5537', '3569']
[EX A]: 7471, 11, 5537, 3569

[EX Q]: ['z', 'A', '7831', 't']
[EX A]: 26, 1, 7831, 20

[EX Q]: ['4247', '1237', '437', 'E', '9453', 'r', '9851', '5289', 'w', 'd', '4467', 'o', 't', 'm', 'I', 'v']
[EX A]:
4247, 1237, 437, 5, 9453, 18, 9851, 5289, 23, 4, 4467, 15, 20, 13, 9, 22