Task: Program Execution
Input (English): 9, ['o', '7451', '4489', 'X', 'V', 'C', '5539', '5641', '1245', '3363', '3449', '8417', 'C', '4179', 'O', 'B', '5037', 'm', 'u', 'c', '4643', '3779', 'B', '2421', '2171', '6523', 'a', '7917', '6671']
Output (English): o, 3363, u, 7917