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: ['9579', 'B', 'q', '181', '2955', 'q', 'I', 'L', 'g', '1357', '5797', '7917', 'd', '5745', '5591', '5687', 'a', '1219', 'd', '3849', 'z', '4695', 'j', '4133', '8689', 'r', 'W', 'I', 'p', '9971', '5525']

SOLUTION: 9579, 2, 17, 181, 2955, 17, 9, 12, 7, 1357, 5797, 7917, 4, 5745, 5591, 5687, 1, 1219, 4, 3849, 26, 4695, 10, 4133, 8689, 18, 23, 9, 16, 9971, 5525

PROBLEM: ['8623', '1535', '2699', 'e', '1463', '279']

SOLUTION: 8623, 1535, 2699, 5, 1463, 279

PROBLEM: ['1253', '7645', 'Y', '9897', '7047', '7489', 'r', 't', '1509', 'N', 'k', '8791', 'h', 'd', '8567', '2749', '9307', '3421', 'k', '1843', '8475', 'p']

SOLUTION:
1253, 7645, 25, 9897, 7047, 7489, 18, 20, 1509, 14, 11, 8791, 8, 4, 8567, 2749, 9307, 3421, 11, 1843, 8475, 16