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.

['N', 'f', '8347', '7807', '6019', '9973']
14, 6, 8347, 7807, 6019, 9973

['4117', 'N', '4083', 'N', 'M', 'q', 'L', 'Q', 't', 'G', 'S', '3623', '4317', 't', '4353', 'q', '8617', 'O', '4829', 'S', 'D', '5011', '699', '9883', 'b', 'g', '6933', '9783', 'f', '353', 'A', 'o', '8931', 'S', 'o', '921', '8833', 'J', 'R']
4117, 14, 4083, 14, 13, 17, 12, 17, 20, 7, 19, 3623, 4317, 20, 4353, 17, 8617, 15, 4829, 19, 4, 5011, 699, 9883, 2, 7, 6933, 9783, 6, 353, 1, 15, 8931, 19, 15, 921, 8833, 10, 18

['k', 'n', 'f', 'I', '8171', '9863', 'v', 'X', 'F', 'P']

11, 14, 6, 9, 8171, 9863, 22, 24, 6, 16