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: ['K', '257', '2725', '3791', '137', 'd', 'A', '1621', 'e', '7827', '7213', 'L', 'G', 'E', '4469', 'Q', '283', '2529', 'c', '601', 'q', 'a', '8731', 'k', '9305', 'R', '1189', 'k', '3225', 'h', '9905', '8207', '9671']

11, 257, 2725, 3791, 137, 4, 1, 1621, 5, 7827, 7213, 12, 7, 5, 4469, 17, 283, 2529, 3, 601, 17, 1, 8731, 11, 9305, 18, 1189, 11, 3225, 8, 9905, 8207, 9671