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.

Example Input: ['5151', '8663', '4373', 'L', '5491', '123', 'l', 'E', 'b', '3047', 'o']
Example Output: 5151, 8663, 4373, 12, 5491, 123, 12, 5, 2, 3047, 15

Example Input: ['7869', 'q', '7887', 'z', 'r', '7069', 'C', '2793', 'N']
Example Output: 7869, 17, 7887, 26, 18, 7069, 3, 2793, 14

Example Input: ['3695', '7849', '4673', 't', 'A', '8893', 'g', 'H', '2929', '4763', '4947', 'O', '7223', '8855', '7077', '9663', '4483', '6549']
Example Output:
3695, 7849, 4673, 20, 1, 8893, 7, 8, 2929, 4763, 4947, 15, 7223, 8855, 7077, 9663, 4483, 6549