Task: Program Execution
Input (English): 5, 9, ['465', 'b', 'r', '6893', '4253', '5', '2021', 'a', 'S', '2149', 'h', '8231', 'q', 'v', 'k', '4423', 'K']
Output (English): 4253, 5, 2021, a, S