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: ['m', '6497', 'F', '1001', 'H', '5961', 'e']

SOLUTION: 13, 6497, 6, 1001, 8, 5961, 5

PROBLEM: ['N', '4731', '2087', 't', 'g']

SOLUTION: 14, 4731, 2087, 20, 7

PROBLEM: ['o', 'M', '6705', 'b', 'b', 'o', '7159', '5801', '4433', 'N', 's', 'j', 'Y', 'J', 'f', '8075', '5345', '3829', 'L', 'T', '7687', 't', '2397', '5435', '3131', '3515', 'g', 'h', 'E', '5859', 'c', '4445', 's', '7741']

SOLUTION:
15, 13, 6705, 2, 2, 15, 7159, 5801, 4433, 14, 19, 10, 25, 10, 6, 8075, 5345, 3829, 12, 20, 7687, 20, 2397, 5435, 3131, 3515, 7, 8, 5, 5859, 3, 4445, 19, 7741