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.

['7127', '6275', '9527', 'l', 'J', '6051', 'k', 'y', 'W', '3467', '4027', '9027', 'R', 'k', 'p', '7191', 'h', 'y']
7127, 6275, 9527, 12, 10, 6051, 11, 25, 23, 3467, 4027, 9027, 18, 11, 16, 7191, 8, 25

['9003', 'i', '881', 'l', 'f', '2663', '1619', 'Y', 'E', 'W', '2869', 'k', 'v', 'c', '9423', 'S', 'G', 'C', 's', '4311', '531', '9789', '937', 'F']
9003, 9, 881, 12, 6, 2663, 1619, 25, 5, 23, 2869, 11, 22, 3, 9423, 19, 7, 3, 19, 4311, 531, 9789, 937, 6

['5151', '8663', '4373', 'L', '5491', '123', 'l', 'E', 'b', '3047', 'o']

5151, 8663, 4373, 12, 5491, 123, 12, 5, 2, 3047, 15