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: ['4511', '3187', 'A', '4469', '7071', 'd', '3401', '4495', 'D', 'O', '1637', 'X', '4547', '4637', 'S', 'D', '4555', '7091', 'N', '1603', 'n', 'O', '429', '6795', 'm', '8921', '5357', '101', '7671', '7121', '2667']

SOLUTION: 4511, 3187, 1, 4469, 7071, 4, 3401, 4495, 4, 15, 1637, 24, 4547, 4637, 19, 4, 4555, 7091, 14, 1603, 14, 15, 429, 6795, 13, 8921, 5357, 101, 7671, 7121, 2667

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: ['6149', '7835', 'Y', 'l', 'D', 'n', '191', '8281', 'I', '701', '309', 'i', 'z', '9317', '1483', 'Z', 'f', '8695', '461', '5799', 'I', '3669', '3965', '427', 'J', 'n', '1493', 'q']

SOLUTION:
6149, 7835, 25, 12, 4, 14, 191, 8281, 9, 701, 309, 9, 26, 9317, 1483, 26, 6, 8695, 461, 5799, 9, 3669, 3965, 427, 10, 14, 1493, 17