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: ['e', 'M', '3307', 'x', 'K', 'w', 'P', '6985', 'g', '2507', 'U', 'I', 'V', 'W', 's', '2985', 'b', '3365', '5091', '7539', '5829', 'z', 'h', '3139', '1415', 'n', 'F', '8373', '5777', 'g', 'p', '6259', 'j', '8059', '425', 'A', '3063', 'r']

5, 13, 3307, 24, 11, 23, 16, 6985, 7, 2507, 21, 9, 22, 23, 19, 2985, 2, 3365, 5091, 7539, 5829, 26, 8, 3139, 1415, 14, 6, 8373, 5777, 7, 16, 6259, 10, 8059, 425, 1, 3063, 18