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: ['s', '6195', 'y', 'B', '3305', 'g', '8085', 'V', 'u', 'P', 'E', '6017', '2805', 'j', '2295', '1811', '9291', 'c', '2559', 's', 'e', '6099', '4885', 'v', '4675', '147', '9591', 'R', '4185', 'X', '3', 'J']

19, 6195, 25, 2, 3305, 7, 8085, 22, 21, 16, 5, 6017, 2805, 10, 2295, 1811, 9291, 3, 2559, 19, 5, 6099, 4885, 22, 4675, 147, 9591, 18, 4185, 24, 3, 10