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: ['7147', 'c', 'v', '8845', '2227', '1169', '8419', '4377', '4835', '4635']

7147, 3, 22, 8845, 2227, 1169, 8419, 4377, 4835, 4635