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: ['647', 'h', '6029', 'r', '7851', 'g', 'u', '9383', '4033', 'i', 'N', '3515', '9369', 'h', '8997', 'H', 'Y', 'k', '1505', 'L', 'F', '3311', '3475', 'a', '6047', '8745', '9905', '6131', '3893', '9329', 'f', '9549', '2777', '2191', '369', '3691', '489', 't', '8239', 'm']

SOLUTION: 647, 8, 6029, 18, 7851, 7, 21, 9383, 4033, 9, 14, 3515, 9369, 8, 8997, 8, 25, 11, 1505, 12, 6, 3311, 3475, 1, 6047, 8745, 9905, 6131, 3893, 9329, 6, 9549, 2777, 2191, 369, 3691, 489, 20, 8239, 13

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: ['h', '5271', '2621', 'V', '9891', '3713', 'A', 'p', '1103', '1189', '4373', 'F', 'X', 'W', '2031', 'k', '9653', 'x', '4877', 'N', '8191', '27', 't', 'S', '7365', 't', 'G', '7459', '1589', 'P', 'V', '7187', '9183', 'D']

SOLUTION:
8, 5271, 2621, 22, 9891, 3713, 1, 16, 1103, 1189, 4373, 6, 24, 23, 2031, 11, 9653, 24, 4877, 14, 8191, 27, 20, 19, 7365, 20, 7, 7459, 1589, 16, 22, 7187, 9183, 4