Task: Program Execution
Input (English): 2, 6, ['571', '2013', '5549', 'U', 'N', 'f', '3737', 'E', 'N', 'Q', '863', 'Q', 'f', 'E', '1123', '8797', '2713', '2225', '343', '6729']
Output (English): 2013, E, E, 6729