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: ['T', 'a', 'B', '3407', 'z', 'B', 'f', '4063', '8889', '3125']

SOLUTION: 20, 1, 2, 3407, 26, 2, 6, 4063, 8889, 3125

PROBLEM: ['6573', '5519']

SOLUTION: 6573, 5519

PROBLEM: ['8297', 'G']

SOLUTION:
8297, 7

