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: ['I', '1955', 'O', 'F', 's', '6579', 'x', '5185', '1041', 'Q', 'F', 'C', '9569', '8555', '3131', '8219', '3817', 'Z', '9207', 'y', '9481', '5347', '37', '4613', '9439', 'o', '8293', '5989', '7801']

SOLUTION: 9, 1955, 15, 6, 19, 6579, 24, 5185, 1041, 17, 6, 3, 9569, 8555, 3131, 8219, 3817, 26, 9207, 25, 9481, 5347, 37, 4613, 9439, 15, 8293, 5989, 7801

PROBLEM: ['4481', '3957', 'l', '257', 'Y', '6271', 'a', 'a', '9103', '5057', 'g', '8273', '1475', '3583', '3399', 'j', 'O', 'I', '2499', '8301', 'a', 'H', 'l', '903', 'n', '8951', 'U', 'm', 'i', 'R', '6215', 'l', 'f', '407', 'F', '9303']

SOLUTION: 4481, 3957, 12, 257, 25, 6271, 1, 1, 9103, 5057, 7, 8273, 1475, 3583, 3399, 10, 15, 9, 2499, 8301, 1, 8, 12, 903, 14, 8951, 21, 13, 9, 18, 6215, 12, 6, 407, 6, 9303

PROBLEM: ['6867', 'N', 'O', '9579', '891', '9069', 'x', 'R', 'g', '7455', '1749', '5209', '8039', '9477', '4765', 'S', 'm', '3893', 'P', '157', 'J', 'Y', 'Z', '5917', 'D', '9741', '1573', 'R']

SOLUTION:
6867, 14, 15, 9579, 891, 9069, 24, 18, 7, 7455, 1749, 5209, 8039, 9477, 4765, 19, 13, 3893, 16, 157, 10, 25, 26, 5917, 4, 9741, 1573, 18