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: ['4017', 'W', 'R', '2055', '3361', '9725', 'N', 'k', '5121', '8929']

SOLUTION: 4017, 23, 18, 2055, 3361, 9725, 14, 11, 5121, 8929

PROBLEM: ['8643', 'H', 'g', '7997', '4131', 'c', '7125', 'Z', '2811', '3543', '269', 'Y', 'E', 'R', 'A', '2241', 'G', '9967', '3141', 'B', 'Y', 'A', '3263', 'c', '251', 'D', 'z', '5509', '1805']

SOLUTION: 8643, 8, 7, 7997, 4131, 3, 7125, 26, 2811, 3543, 269, 25, 5, 18, 1, 2241, 7, 9967, 3141, 2, 25, 1, 3263, 3, 251, 4, 26, 5509, 1805

PROBLEM: ['W', 'L', '9849', '4795', 'k', 'r', '8153', '8389', '9325', 'J', 'K', 'V', '6599', '8677', 'R', '5815', '2357', 'V', 'j', '4865', 'i']

SOLUTION:
23, 12, 9849, 4795, 11, 18, 8153, 8389, 9325, 10, 11, 22, 6599, 8677, 18, 5815, 2357, 22, 10, 4865, 9