Definition: 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.
Input: ['P', 'X', '3695', '3823', 'b', 'o', '4307', 'h', 'W', 'r', '7675', '9565', 'G', '9061', '19', '3077', 'b', '7809', '6379', 'A', 'B', '4405', '7427', '1685', '5907', 'l', '2431', '1985', 'c', 'F', '2867', '3361']

16, 24, 3695, 3823, 2, 15, 4307, 8, 23, 18, 7675, 9565, 7, 9061, 19, 3077, 2, 7809, 6379, 1, 2, 4405, 7427, 1685, 5907, 12, 2431, 1985, 3, 6, 2867, 3361