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: ['2797', '4225', 'Z', '1215', 'v', 'e', 'J', 'J', 'Z', '7697', '4065', '5083', 'B', 'v', '2899', '6925', 'D', '2983', 'c', '6407', 'R', 'l', '2563', '5089', '4455', 'c', '8547', '4329', 'r', 'e', 'M', 'V', 'I', 'j', 'f', '9195']

2797, 4225, 26, 1215, 22, 5, 10, 10, 26, 7697, 4065, 5083, 2, 22, 2899, 6925, 4, 2983, 3, 6407, 18, 12, 2563, 5089, 4455, 3, 8547, 4329, 18, 5, 13, 22, 9, 10, 6, 9195