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.
Input: ['3021', '4949', '245', 'e', 'K', 'S', '4759', '1365', 'K', 'E', 'D', '5133', '3213', 'O', '7529', 'h', '9535', '5535', '2475', 'J', 'F', 'h', 'T', '459', 'x', '331', 's', '1463', 'y', '1467', 'K', 'Y', '8361', '4905']

3021, 4949, 245, 5, 11, 19, 4759, 1365, 11, 5, 4, 5133, 3213, 15, 7529, 8, 9535, 5535, 2475, 10, 6, 8, 20, 459, 24, 331, 19, 1463, 25, 1467, 11, 25, 8361, 4905