Task: Program Execution
Input (English): 4, 6, ['K', '7005', 'X', '4579', 'h', '833', '4615', '2143', 'g', '7269', '5339', '7023', 'm', 'x', 'g', 'f', 'k', '2959', 'F', 'P', 'b', 'T', '347', '2997', '907']
Output (English): 4579, 7269, f, T