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: ['7189', '6585', '5765', 'n', 'a', '8117', '841', 'D', 's', '6609', '851', '4247', 'W', '9911', '5681', 'm', 'R', 'k', 'c', 'q', '1695', 'Z', '3045', 'v', 'k', 'C', '839', '9449', 'i', 'j']

7189, 6585, 5765, 14, 1, 8117, 841, 4, 19, 6609, 851, 4247, 23, 9911, 5681, 13, 18, 11, 3, 17, 1695, 26, 3045, 22, 11, 3, 839, 9449, 9, 10