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: ['r', '893', 'v', '9625', 'g', 'y', '6757']

SOLUTION: 18, 893, 22, 9625, 7, 25, 6757

PROBLEM: ['1293', '8267', 'e', '7319', 'I', 'S', 'i', '3381', '9315']

SOLUTION: 1293, 8267, 5, 7319, 9, 19, 9, 3381, 9315

PROBLEM: ['6851', '3633', 'q', 'X', 'x', '4555', 'y', '7341', '633', '1849', '2853', '2477', 'U', 'I', '9535', '7649', 'C', '883', 'G', 'h', '5675', '3155', 'i', '6981', 'R', '6059', '6279', 'y', 'k', '495', '2599']

SOLUTION:
6851, 3633, 17, 24, 24, 4555, 25, 7341, 633, 1849, 2853, 2477, 21, 9, 9535, 7649, 3, 883, 7, 8, 5675, 3155, 9, 6981, 18, 6059, 6279, 25, 11, 495, 2599