C21221212121211331322132313132313132313232233132313223313231323331312231   >>    C2122121212121133132213231313231313231323223313231322331323132333131223   <<    C21221212121211331322132313132313132313232233132313223313231323331312233   >>      C21221212121211331322132313132313132313232233132313223313231323331312232   >>