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.

['9419', 't', '9383', 'o', 'Y', 'T', '5949', 's', '1957', 'O', 'w', '3573', 'W', 's', '9431', 'c', '6711']
9419, 20, 9383, 15, 25, 20, 5949, 19, 1957, 15, 23, 3573, 23, 19, 9431, 3, 6711

['3059', '4039', 'c', 'R', '7329', 'm', 'E', 'R', '1231', '6861', '29']
3059, 4039, 3, 18, 7329, 13, 5, 18, 1231, 6861, 29

['s', 't', 'B', '9613', 'G', 'Z', '9193', 'Z', 'X']

19, 20, 2, 9613, 7, 26, 9193, 26, 24