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: ['1929', 'h', '9849', '5701', '193', 'm', '1183', 'g', '9875', 'x', 'b', 'K', 'A', 'f', '9281', '5909', '9401', 'K', 'D', 'P', '573', '8883', 'z', 'q', '8215', 'g', 'P', 'V', '8889', '315', '3887']

1929, 8, 9849, 5701, 193, 13, 1183, 7, 9875, 24, 2, 11, 1, 6, 9281, 5909, 9401, 11, 4, 16, 573, 8883, 26, 17, 8215, 7, 16, 22, 8889, 315, 3887