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: ['9603', '7169', 'c', 'c', 'F', '4707', '6695', '8605', '4885', '8059', 'R', 'q', '7167', 'd', 'n', 'm', 'k', 'P', '3671', 'M', '3337', '6435', '6075', 'g', 'q', '897', 'h', 'n', 'z', '3595', 'C', 'o', 'u', 'z', 'J', 'G', 'p', 'l', '5229']

9603, 7169, 3, 3, 6, 4707, 6695, 8605, 4885, 8059, 18, 17, 7167, 4, 14, 13, 11, 16, 3671, 13, 3337, 6435, 6075, 7, 17, 897, 8, 14, 26, 3595, 3, 15, 21, 26, 10, 7, 16, 12, 5229