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: ['a', '9907', '6485', 'K', 'e', 'X', '687', '7687', '589', 'n', '7287', '9637']

SOLUTION: 1, 9907, 6485, 11, 5, 24, 687, 7687, 589, 14, 7287, 9637

PROBLEM: ['A', 'M', '4265', 'P', 'e', 'W', 'I', '7481', 'a', 'L', 'w', '2891', '347', '6469', 'T', 'I', '7517', '9357', 'v', 'd', 'N', 'S', 'G', '4715', '235', '359']

SOLUTION: 1, 13, 4265, 16, 5, 23, 9, 7481, 1, 12, 23, 2891, 347, 6469, 20, 9, 7517, 9357, 22, 4, 14, 19, 7, 4715, 235, 359

PROBLEM: ['6055', 'k', '27', 'j', 'o', '3305', '8639', 'c', '4123', 'S', 'a', 'j', '3325', '6227', 'p', 'o', 'a', '8005', '1027', 'h', '9995', '4133', '759', 'R', 'o', '2563', 'd', 'E', '6899', '2717', 'q', '6413', 'O', 't', '4037', 'V', 'i', '2531', '3925', '7593']

SOLUTION:
6055, 11, 27, 10, 15, 3305, 8639, 3, 4123, 19, 1, 10, 3325, 6227, 16, 15, 1, 8005, 1027, 8, 9995, 4133, 759, 18, 15, 2563, 4, 5, 6899, 2717, 17, 6413, 15, 20, 4037, 22, 9, 2531, 3925, 7593