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: ['9093', 'T', '7465', '8911', 'U', 'd', 't', '9501', 'l', 'M', '1917', '1899', '7739']

SOLUTION: 9093, 20, 7465, 8911, 21, 4, 20, 9501, 12, 13, 1917, 1899, 7739

PROBLEM: ['O', '793', 'N', '2211', 'F', '7997', 'K', 'o', 'R', 'I', 'b', '5451', 'f', 'w', '1867', 'X', '1713', 's', 'W', '8361', 'T', '205', '2671', '575', 'i', '8159', '5405', '8013', '1379', '3769', '655', 'e', '729', '7145', '5123', '2125', 'q']

SOLUTION: 15, 793, 14, 2211, 6, 7997, 11, 15, 18, 9, 2, 5451, 6, 23, 1867, 24, 1713, 19, 23, 8361, 20, 205, 2671, 575, 9, 8159, 5405, 8013, 1379, 3769, 655, 5, 729, 7145, 5123, 2125, 17

PROBLEM: ['u', 'Z', '9581', 'F', 'G', 'u', 'N', 'M', 'l', '1463', '4963', '5903', 'K', '7999', 's', 'E', 'q', '297', 'j', '8315', 'x', '5331', '5379', 'R']

SOLUTION:
21, 26, 9581, 6, 7, 21, 14, 13, 12, 1463, 4963, 5903, 11, 7999, 19, 5, 17, 297, 10, 8315, 24, 5331, 5379, 18