Task: Program Execution
Input (English): 1, 5, ['b', '9731', 't', 'S', 'D', '4527', '4167', 'T', '2821', 'L', '9673', 'g', 'x', 'i', 'n', '6939', 'J', 'p', '7441', '891']
Output (English): b, 4527, 9673, 6939