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: ['2495', '9795', 'e', 'Q', '4625', '8865', 'q', '5177', 'M', 'S', 'q', '5521', '5949', '8593', '8727', '3905', 'W', '9905', 'i', '3575', 'N', 'Q', '9473', '9239', 'S', 'r', 'a']

2495, 9795, 5, 17, 4625, 8865, 17, 5177, 13, 19, 17, 5521, 5949, 8593, 8727, 3905, 23, 9905, 9, 3575, 14, 17, 9473, 9239, 19, 18, 1