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: ['5319', 'G', '6901', '3897', 'D', '7909', 'x', '2723', '9683', 'k', '91', 'P', 'u', '5847', 'X', '2795', 'w', '9953', 'D', 'y', '1401', 'F', '8885', 'V', '7301', 'V', '9073', '7831', '1151', 'z', '1425', '2121', '1395', 't', 'W']

SOLUTION: 5319, 7, 6901, 3897, 4, 7909, 24, 2723, 9683, 11, 91, 16, 21, 5847, 24, 2795, 23, 9953, 4, 25, 1401, 6, 8885, 22, 7301, 22, 9073, 7831, 1151, 26, 1425, 2121, 1395, 20, 23

PROBLEM: ['3731', 'V', 'C', 'S', '8601', '2753', '9015', '7233', '3903', 'v', '9723', 'J', '5227', 'N', 'S', 'f']

SOLUTION: 3731, 22, 3, 19, 8601, 2753, 9015, 7233, 3903, 22, 9723, 10, 5227, 14, 19, 6

PROBLEM: ['Q', 'N', 'Q', '2031', '4437', 'w', 'M', '657', '1753', '6753', '6303', '7081', '8207', 'm', '6221', 'y', 'g', 'F', 'O', 'G', '9811', '2527', '1133', 'j', '7731', '9009', '3203', '6649', '4177', 'y', '1499', '9949', '5069', '5777']

SOLUTION:
17, 14, 17, 2031, 4437, 23, 13, 657, 1753, 6753, 6303, 7081, 8207, 13, 6221, 25, 7, 6, 15, 7, 9811, 2527, 1133, 10, 7731, 9009, 3203, 6649, 4177, 25, 1499, 9949, 5069, 5777