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: ['6665', 'k', '5545', '3963', '6105', 'F', 'q', '7941', 'I', '9063', '819', '1151', '2351', '7371']

6665, 11, 5545, 3963, 6105, 6, 17, 7941, 9, 9063, 819, 1151, 2351, 7371