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.

['9407', 's', '3757', '6925', '8457', '7659', '2961', '1895', 'x', 'E', '1765', 'G', 'F', '369', 'R', '7845', 'i', 'Z', 'U', '4169', 'V', '6981', '1495', '8703', '9079', '5695', 'Z']
9407, 19, 3757, 6925, 8457, 7659, 2961, 1895, 24, 5, 1765, 7, 6, 369, 18, 7845, 9, 26, 21, 4169, 22, 6981, 1495, 8703, 9079, 5695, 26

['2565', '6315']
2565, 6315

['3019', '8515', 'M', 'B', 'o', 'T', 't', 'D', 'B', '8413', '2033', '657', 'X', '3809', '5187', '3391', 'V', 'j', '41', 'Q', '5029']

3019, 8515, 13, 2, 15, 20, 20, 4, 2, 8413, 2033, 657, 24, 3809, 5187, 3391, 22, 10, 41, 17, 5029