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: ['B', 'X', '5657', 'F', 'u', '6961', '5387', 'I', '6943', 'U', 'z', 'B', '8447', 'o', 'a', 'i', 'w', 'Q', 'h', 'h', 'T', 'g', '5161', '305']

SOLUTION: 2, 24, 5657, 6, 21, 6961, 5387, 9, 6943, 21, 26, 2, 8447, 15, 1, 9, 23, 17, 8, 8, 20, 7, 5161, 305

PROBLEM: ['D', '7557', '2965', 'N', 'd', 'R', '2845', 'f', '8165', 'Y', 'N', '4109', 't', '7323']

SOLUTION: 4, 7557, 2965, 14, 4, 18, 2845, 6, 8165, 25, 14, 4109, 20, 7323

PROBLEM: ['q', '6499', '9517', 'C', '4935', 'C', '237', 'C', 'o', 't', '4923', '8223', 'Z', '617', 'V', '2651', '8845', '3947', 'i']

SOLUTION:
17, 6499, 9517, 3, 4935, 3, 237, 3, 15, 20, 4923, 8223, 26, 617, 22, 2651, 8845, 3947, 9