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: ['u', 'I', 'v', '6185', 'A', 'f', 'M', '5505', 'K', 'z', '7023']

21, 9, 22, 6185, 1, 6, 13, 5505, 11, 26, 7023