Task: Program Execution
Input (English): 10, ['4643', 'N', 'n', '5767', 'a', '3831', '6421', 'h', '1843', 'h', '4121', 'v', '375', 'g', 'N', '3015', 'B', '5839', '2999', '4793', 'B', 'J', 'u', '7117', '4599', '8031', '2519', 'i', 'n', '8091', '8387', '9029', '8623', '2577', 'a', '819', 'N', '4213', 'B', 'b', 'E', 'E', 'R']
Output (English): 4643, 4121, B, 8387, E