Task: Program Execution
Input (English): 3, 5, ['2603', '4919', '3621', '1847', 'r', 'I', 'k', 'D', 'D', '7481', '7677', '4233', 'a', '8475', 'b', 'b', 'H', 'r', 'O']
Output (English): 3621, D, a, r