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: ['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: ['2973', 'a', '6251', 's', '5009', 'm', 'G']

SOLUTION: 2973, 1, 6251, 19, 5009, 13, 7

PROBLEM: ['5319', '6495', 'Y', '5057', 'p', '589', 'U', 'P', '879', 'B', 't', 'E', 'Y', '4287', 'g', 'h', '7655']

SOLUTION:
5319, 6495, 25, 5057, 16, 589, 21, 16, 879, 2, 20, 5, 25, 4287, 7, 8, 7655