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: ['e', 'a', '3337', 'R', 'H']

SOLUTION: 5, 1, 3337, 18, 8

PROBLEM: ['q', '5203', 'L']

SOLUTION: 17, 5203, 12

PROBLEM: ['D', '593', 'i', '7459', '2611', '8095', 'm', 'k', 'F', '6073', '2031', '8691']

SOLUTION:
4, 593, 9, 7459, 2611, 8095, 13, 11, 6, 6073, 2031, 8691

