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: ['D', 'T', 'U', '4023', '7819', 'i', '7791', 'l', 'q', '895', '3025']

SOLUTION: 4, 20, 21, 4023, 7819, 9, 7791, 12, 17, 895, 3025

PROBLEM: ['p', 'V', '2273', 'Q', '5903', '8185', '531', 'C', '7133', '735', '5931', 'X', '859', '5033', '7511', 'd', '4367', 'n', 'T', 'z', 'W', '8885', 'G', 'z', 's', '5397', '2115', 'G', '5891', 'Q', 'T', '7847', '9051', 'a', 'L', '4853']

SOLUTION: 16, 22, 2273, 17, 5903, 8185, 531, 3, 7133, 735, 5931, 24, 859, 5033, 7511, 4, 4367, 14, 20, 26, 23, 8885, 7, 26, 19, 5397, 2115, 7, 5891, 17, 20, 7847, 9051, 1, 12, 4853

PROBLEM: ['4241', '1289', 'e', 'f', '2637', '205', '1455', '9005', '4605', 'G', '3851', '7547', '4753', '2343', 'I', '9237', '725', '3541', 'j', 'X', 'E', '1305', '2713', 'N', '751', '2987', 'A', 'M', 'p', 'U', 'c', 'T', '9565', 'U', '3931', '1165', '8967', 'Y']

SOLUTION:
4241, 1289, 5, 6, 2637, 205, 1455, 9005, 4605, 7, 3851, 7547, 4753, 2343, 9, 9237, 725, 3541, 10, 24, 5, 1305, 2713, 14, 751, 2987, 1, 13, 16, 21, 3, 20, 9565, 21, 3931, 1165, 8967, 25