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: ['P', '4337', 'q', '9481', '7859', 'E', '1813', '2611', '1647', 'X', '4807', '253', '3465', 'o', 'p', 'z', 'K', 'z', 'P', 'l', 'Z', '5635', '7601', 'u', 'e', '2255', 'v', '6357', 'S']

SOLUTION: 16, 4337, 17, 9481, 7859, 5, 1813, 2611, 1647, 24, 4807, 253, 3465, 15, 16, 26, 11, 26, 16, 12, 26, 5635, 7601, 21, 5, 2255, 22, 6357, 19

PROBLEM: ['K', 'm', '167', '521', '6385', 'P', '8757', 'k', '6385', '9617', 'W', 'K', '641', 'R', '4389', 'O', 'T', '7877', '5403', '5083', 'F', 't', '3663', 'X', 'e', 'P', '265', 'W', 'i', 'w', 'd', '7457', 'Z', '7047', 'j']

SOLUTION: 11, 13, 167, 521, 6385, 16, 8757, 11, 6385, 9617, 23, 11, 641, 18, 4389, 15, 20, 7877, 5403, 5083, 6, 20, 3663, 24, 5, 16, 265, 23, 9, 23, 4, 7457, 26, 7047, 10

PROBLEM: ['159', '5081', 'J', 'o', '1227', '973', '6077', '585', '1089', '8293', 's', '2815', 'd', '4701', '6541', '5451', '4049', '8169', '7681', '9711']

SOLUTION:
159, 5081, 10, 15, 1227, 973, 6077, 585, 1089, 8293, 19, 2815, 4, 4701, 6541, 5451, 4049, 8169, 7681, 9711