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.

['7199', '1787', '879', '3121', 'Y', '3363', 'O', 'g', 'j', '5767', '8799', '1811', '2255', 'i', 'g', 'D', 'm', 'v', 'm', 'm', '977', '7171', 'j', 'Y', '663', 'v', '5599', '3997', '8287', '7293', 'D']
7199, 1787, 879, 3121, 25, 3363, 15, 7, 10, 5767, 8799, 1811, 2255, 9, 7, 4, 13, 22, 13, 13, 977, 7171, 10, 25, 663, 22, 5599, 3997, 8287, 7293, 4

['8217', '5723', 'o', 'M', 'P', 'w', 'H', '233', '7417', '3223', '1185', 'W', '9875', '6363', 'y']
8217, 5723, 15, 13, 16, 23, 8, 233, 7417, 3223, 1185, 23, 9875, 6363, 25

['4805', 'h', 'D', 'F', '8457', '9321', '4153', 'N', 'y', '1049', '7093', 'a', 'k', 'n', '5875', '4211', '8615', '1653', '1543', 's', 'j', '4655', '1117', 'x', 'C', 'l', '5247', '2277']

4805, 8, 4, 6, 8457, 9321, 4153, 14, 25, 1049, 7093, 1, 11, 14, 5875, 4211, 8615, 1653, 1543, 19, 10, 4655, 1117, 24, 3, 12, 5247, 2277