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: ['P', 'w', '1309', '611', '3441', '5137', '5877', '7055', '5261', '5431', 'T', '1297', '599', '9087', '9131', '1911', '7285', 'd', 'k', '3151', '3665', 'e', 'E', 'k', 'D', '215', 'X', 'e']

16, 23, 1309, 611, 3441, 5137, 5877, 7055, 5261, 5431, 20, 1297, 599, 9087, 9131, 1911, 7285, 4, 11, 3151, 3665, 5, 5, 11, 4, 215, 24, 5