TASK DEFINITION: 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.
PROBLEM: ['2565', '6315']

SOLUTION: 2565, 6315

PROBLEM: ['3415', 'V', 'b', 'y', 'D', '345', '3149']

SOLUTION: 3415, 22, 2, 25, 4, 345, 3149

PROBLEM: ['k', '5151', 'D', '8795', 'T', '5473', '453']

SOLUTION:
11, 5151, 4, 8795, 20, 5473, 453