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: ['q', '2267', '4709', '7447', '6777', 'j', '9981', 'G', 'D', 'w', '6471', 'o', 'c', '7357', 'j']

17, 2267, 4709, 7447, 6777, 10, 9981, 7, 4, 23, 6471, 15, 3, 7357, 10