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: ['3731', 'V', 'C', 'S', '8601', '2753', '9015', '7233', '3903', 'v', '9723', 'J', '5227', 'N', 'S', 'f']

SOLUTION: 3731, 22, 3, 19, 8601, 2753, 9015, 7233, 3903, 22, 9723, 10, 5227, 14, 19, 6

PROBLEM: ['8773', 'f', '3171', '9425', '7489', 'z', 'V', '9409', 'K', '2815', 'p', '8479', '1787', 'm', '5481', '2591', 'k', '1545', '8041', '2425', '5569', 'J', 'c', 'T', '4839', 'n', '5085', '2685', '4129', 'H', 'P', '4391', 'G', '6285', 'k', 'z', 'v']

SOLUTION: 8773, 6, 3171, 9425, 7489, 26, 22, 9409, 11, 2815, 16, 8479, 1787, 13, 5481, 2591, 11, 1545, 8041, 2425, 5569, 10, 3, 20, 4839, 14, 5085, 2685, 4129, 8, 16, 4391, 7, 6285, 11, 26, 22

PROBLEM: ['4021', 'Q', 'M', 'T', 'V', '3091', '9815', 'i', 'B', '5711', '6751', 'p', 'X', '4303', '2957', 'D', '9065', '8697', '8919', '1603', 'F', 'A', '4623', 'F', '5813', 'n', 'x', '7937', 'j', 'q', '3643', 'N', 'H', '4373']

SOLUTION:
4021, 17, 13, 20, 22, 3091, 9815, 9, 2, 5711, 6751, 16, 24, 4303, 2957, 4, 9065, 8697, 8919, 1603, 6, 1, 4623, 6, 5813, 14, 24, 7937, 10, 17, 3643, 14, 8, 4373