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.

['f', '1287', '4749', 'Z', 'N', 'P', '5427', '3573', '4883', '6355', 'B', '2901', 'A', 'p', 'a', 'c', '1327', 'V', 'F', '873', '5635', '7393']
6, 1287, 4749, 26, 14, 16, 5427, 3573, 4883, 6355, 2, 2901, 1, 16, 1, 3, 1327, 22, 6, 873, 5635, 7393

['i', '5103', '9407', '6703', 'q', 'W', 'y', '2667', '1847', '2019', 'Z', '6393', '2369', 'i', '3965', '3439', 'y', '4237', 'e']
9, 5103, 9407, 6703, 17, 23, 25, 2667, 1847, 2019, 26, 6393, 2369, 9, 3965, 3439, 25, 4237, 5

['k', '1', '8755', 'H', '7133', '2895', '609', 'p', '8245', '7399', 'v', 'P', '1649', 'i', '1565', '911', '1463', 'Y', '2123', 'w']

11, 1, 8755, 8, 7133, 2895, 609, 16, 8245, 7399, 22, 16, 1649, 9, 1565, 911, 1463, 25, 2123, 23