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: ['h', 'v', 'i', 'O', '1665', 'k', 'K', '903', '6619', '4373', 'Q', '8537', 'T', '9119', 'B', '9023', '4639', '9345', '1781', '2513', 'f', '1619', '3245', 'P']

8, 22, 9, 15, 1665, 11, 11, 903, 6619, 4373, 17, 8537, 20, 9119, 2, 9023, 4639, 9345, 1781, 2513, 6, 1619, 3245, 16