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: ['785', '3957', '2269', '1331', 'N', '8075', '3705', 'T', 'n', 'j', '4257', '8441', 'o', '9959', '6535', 'F', '3949', '3071', 'u', 'x', 'S', 'V', 'f', '83', '9939', '9659', 'y']

SOLUTION: 785, 3957, 2269, 1331, 14, 8075, 3705, 20, 14, 10, 4257, 8441, 15, 9959, 6535, 6, 3949, 3071, 21, 24, 19, 22, 6, 83, 9939, 9659, 25

PROBLEM: ['D', 'x', 'r', 'G', 'J', 'q', 'N', '8493', '3351', 'S', '679', '7525', '245', '7573', 'F', '2233', '7873', 'd', 'S', 'D', '4427', 'N', '6373', 'l', '7383', '8411', 'H']

SOLUTION:
4, 24, 18, 7, 10, 17, 14, 8493, 3351, 19, 679, 7525, 245, 7573, 6, 2233, 7873, 4, 19, 4, 4427, 14, 6373, 12, 7383, 8411, 8