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: ['G', '2013', 'Y', 'w', '1159', 'K', 'a', 's', 'A', 'l', '6537', 'G', '9437', 'X', '6451', 'N', 'c', '9713', '7353', 'U', 'n', 'M', 'e', '3901', 'q', 'V', '6123', 'I', 'j', 'O', 'r', 'R', '5925', '9391']

SOLUTION: 7, 2013, 25, 23, 1159, 11, 1, 19, 1, 12, 6537, 7, 9437, 24, 6451, 14, 3, 9713, 7353, 21, 14, 13, 5, 3901, 17, 22, 6123, 9, 10, 15, 18, 18, 5925, 9391

PROBLEM: ['9593', '9143', '9513', '341', '4957', 'W', 'U', '4951', 'P', 'i', 'F', 'q', 'y', '3429', 'k', '5527', 'M']

SOLUTION: 9593, 9143, 9513, 341, 4957, 23, 21, 4951, 16, 9, 6, 17, 25, 3429, 11, 5527, 13

PROBLEM: ['t', 'd', 'I', '8129', '2725', 'x', '7295', '4181', 'W', '5833', '7041', 'v', '6055', '3267', '5697', 'y', 'l', 'q', '6375', 'f', '8847', 'r', '9907', 'B', 'k', 'Z', 'N', 'S', 'J', 'h', 'O', '1671']

SOLUTION:
20, 4, 9, 8129, 2725, 24, 7295, 4181, 23, 5833, 7041, 22, 6055, 3267, 5697, 25, 12, 17, 6375, 6, 8847, 18, 9907, 2, 11, 26, 14, 19, 10, 8, 15, 1671