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: ['t', 'u', 'H', 'y', 'A', 't', 'G', '3361', '8209', 'V', '4765']

SOLUTION: 20, 21, 8, 25, 1, 20, 7, 3361, 8209, 22, 4765

PROBLEM: ['3723', '9019', '1475', '229', '2961', '2131', 'B', '2245', 'o', '2299', 'R', '8165', 'v', 'Q', '501', 'L', '6203', 'y', 'r', 'u', '327', '617', 'z', '3843', 'D', '5647', 'Y', 'f', '4809']

SOLUTION: 3723, 9019, 1475, 229, 2961, 2131, 2, 2245, 15, 2299, 18, 8165, 22, 17, 501, 12, 6203, 25, 18, 21, 327, 617, 26, 3843, 4, 5647, 25, 6, 4809

PROBLEM: ['r', 'K', '7807', 'l', 'Q', '5767', '8145', '9429', 'F', 'c', '1417', '5773', '3569', 'C', 'b', '381', '9995', 'X', 'r', '477', 'S', '3729', '2865', 'Q', 'L', '6775', '4279', '9773', 'V', 's']

SOLUTION:
18, 11, 7807, 12, 17, 5767, 8145, 9429, 6, 3, 1417, 5773, 3569, 3, 2, 381, 9995, 24, 18, 477, 19, 3729, 2865, 17, 12, 6775, 4279, 9773, 22, 19