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

['a', '3105', '1321', '7035', 'B', 'z', '7297', 's', '9107', '7389', 'E', '9239', 'l', 'n', 'E', '8255', 'h', '4269', 't', 'k', 'k', 'P', 'W', 'w', '3267', '4753', '6429', '7191', '6001', 'M', 'J', 'k', '5023']
1, 3105, 1321, 7035, 2, 26, 7297, 19, 9107, 7389, 5, 9239, 12, 14, 5, 8255, 8, 4269, 20, 11, 11, 16, 23, 23, 3267, 4753, 6429, 7191, 6001, 13, 10, 11, 5023

['7681', 'q', '8601', 'A', '6221', '7013', '3775', 'L', 'D', 'M', '7087', '4913', '2475', '1265', 'F', 'z', 'g', '7889', '3981', '1359', '5181', '7867', '9213', '9225', '3441', 'g', 'Z', '1089', '4359', 'e', 'L', 'D', 's', 'k', '5301', 'O']

7681, 17, 8601, 1, 6221, 7013, 3775, 12, 4, 13, 7087, 4913, 2475, 1265, 6, 26, 7, 7889, 3981, 1359, 5181, 7867, 9213, 9225, 3441, 7, 26, 1089, 4359, 5, 12, 4, 19, 11, 5301, 15