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: ['i', '1441', '397', 'S', '8833', '9829', 'g', 'U', 'W', '9651', '9403', '7013', '8445', 'D', 'M']

SOLUTION: 9, 1441, 397, 19, 8833, 9829, 7, 21, 23, 9651, 9403, 7013, 8445, 4, 13

PROBLEM: ['a', 'w', 'n', 'R', 'u', 'z']

SOLUTION: 1, 23, 14, 18, 21, 26

PROBLEM: ['B', '151', 'y', 'L', 'd', '5017', 'm', '3855', 'Q', 'h', 'o', '4685', 'e', 'z', '8411', '4945', 'k', 'j', '4551', 'P', '9719', '4839', 'S', '9201', 'i', '4083', 'A', '5231', 'K', 'E', 'C', 'v', '6019', 'h', 'K', 'R', 'c']

SOLUTION:
2, 151, 25, 12, 4, 5017, 13, 3855, 17, 8, 15, 4685, 5, 26, 8411, 4945, 11, 10, 4551, 16, 9719, 4839, 19, 9201, 9, 4083, 1, 5231, 11, 5, 3, 22, 6019, 8, 11, 18, 3