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.

['W', 'A', '7541', 'Q', 'l', '6441', 'L', 'G', 'e', 'y', '8575', 'y', '8627', 'Z', 'j', 'J', '4411', 'n', 'n', 'v', '5675', '9641']
23, 1, 7541, 17, 12, 6441, 12, 7, 5, 25, 8575, 25, 8627, 26, 10, 10, 4411, 14, 14, 22, 5675, 9641

['6521', 'f', 'm', '1051', 'w', 'C', 'H', 'X', '7715', '5243', '3365', 'l', 'X', 'J', 'y', 'U', '4367', 'v', '8399', '1731', 'z']
6521, 6, 13, 1051, 23, 3, 8, 24, 7715, 5243, 3365, 12, 24, 10, 25, 21, 4367, 22, 8399, 1731, 26

['6675', '5785', 'u', '7293', 'K', '6407', 'k', 'x', '585', 'd', 'E', '2429', 'a', '2417', '7571', '7073', 't', 'Z', '5597', '5555', 'x', 'e', '7913', 'i', '3921', 'M', 'b', 'Y', '3885', '7989']

6675, 5785, 21, 7293, 11, 6407, 11, 24, 585, 4, 5, 2429, 1, 2417, 7571, 7073, 20, 26, 5597, 5555, 24, 5, 7913, 9, 3921, 13, 2, 25, 3885, 7989