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: ['K', 'F', 'r', 'q', '6423', 'E', 'V', 'L', 'z', '9793', 'Y', 'n', '8817', 'w', 'r', '2347', 'W', '977']

11, 6, 18, 17, 6423, 5, 22, 12, 26, 9793, 25, 14, 8817, 23, 18, 2347, 23, 977