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: ['V', '413', 'E', 'A', '1575', '9079', '1845', 'I', 'M', 'a', '4089', '9243', '3737', 'g', 'I', 'M', '9799', '7757', '3383', 'k', '3905', '2951', 'g', '4875', 'x', 'E', 'N', 'z']

SOLUTION: 22, 413, 5, 1, 1575, 9079, 1845, 9, 13, 1, 4089, 9243, 3737, 7, 9, 13, 9799, 7757, 3383, 11, 3905, 2951, 7, 4875, 24, 5, 14, 26

PROBLEM: ['F', 'A', 'A', '5729', '6717', '9171', '2245', '5017', 'T', '8013', '9991', 'o', 'n', 'e', 'n', 'G', 'G', '6581']

SOLUTION: 6, 1, 1, 5729, 6717, 9171, 2245, 5017, 20, 8013, 9991, 15, 14, 5, 14, 7, 7, 6581

PROBLEM: ['4903', '6945', 'r', 'E', '831', '8917', 'u', '7685', '6835', 'p', '3097', '5425', 'f']

SOLUTION:
4903, 6945, 18, 5, 831, 8917, 21, 7685, 6835, 16, 3097, 5425, 6