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: ['9391', '5923', '7195', 'd', '5763', '4437', 'f', '2885', '153', 'I', 'w', 'v', 's', '3381', '2931', 'l', 'P', '2435', '7365', 'I', 'G', '4217', '8047', '6035', '865', 'h', '6273', 'y', 'b', 'X', 'e', '321', 'H']

SOLUTION: 9391, 5923, 7195, 4, 5763, 4437, 6, 2885, 153, 9, 23, 22, 19, 3381, 2931, 12, 16, 2435, 7365, 9, 7, 4217, 8047, 6035, 865, 8, 6273, 25, 2, 24, 5, 321, 8

PROBLEM: ['Q', 'r', 'R', '7979', '881', '9607', 'v', 'C', '5337', 'd', '287', 'i', 't', 'R', 'S', '5257', 'p', 'a', 'F', 'v', 'Q', 'S', 'u', 'o', '3137', 'B', '5975', '2127', '8831', 'w', 'N', '751']

SOLUTION: 17, 18, 18, 7979, 881, 9607, 22, 3, 5337, 4, 287, 9, 20, 18, 19, 5257, 16, 1, 6, 22, 17, 19, 21, 15, 3137, 2, 5975, 2127, 8831, 23, 14, 751

PROBLEM: ['s', '3183', '7969', '5227', 'Z', 'P', '2535', '7329', 'A', 'Q', '661', '7915', 'l', '9197', '2843', '2157', 'W', '5541', '9967', 'I']

SOLUTION:
19, 3183, 7969, 5227, 26, 16, 2535, 7329, 1, 17, 661, 7915, 12, 9197, 2843, 2157, 23, 5541, 9967, 9