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: ['1065', 'b']

SOLUTION: 1065, 2

PROBLEM: ['H', 'W', 'X', 'x', 'c', '1295', '2339', 'l', '2835', '1663', 'H', '261', 'o']

SOLUTION:
8, 23, 24, 24, 3, 1295, 2339, 12, 2835, 1663, 8, 261, 15