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: ['Z', '3475', 'E', 'j', '3677', '1917', 'I', '8059', '4703', '3797', 'J', 'N', '8541', '4289', 'g', 'L', '4629', '6549', '5659']

SOLUTION: 26, 3475, 5, 10, 3677, 1917, 9, 8059, 4703, 3797, 10, 14, 8541, 4289, 7, 12, 4629, 6549, 5659

PROBLEM: ['M', '5857', 'F', 'o', 'k', '113', 'M', 'M', 't', '5535', 'W', 'I', 'H']

SOLUTION:
13, 5857, 6, 15, 11, 113, 13, 13, 20, 5535, 23, 9, 8