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', '7395', 'X', 'D', 'u', 'u', '319', 'J', '95', '1829', '97', 'S', '5627', '607', 'm', 'M', 'K', '4185', 'H', 'x', 'p', '3185', 'V', '1819', 'B', '4793', '3829', '807']

19, 7395, 24, 4, 21, 21, 319, 10, 95, 1829, 97, 19, 5627, 607, 13, 13, 11, 4185, 8, 24, 16, 3185, 22, 1819, 2, 4793, 3829, 807