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: ['z', 'N', 'Q', 'F', '8289', '5941', '8303', '4817', 'h', 'X', 'F', '861', '7209', 'P']

26, 14, 17, 6, 8289, 5941, 8303, 4817, 8, 24, 6, 861, 7209, 16