C1111233133313231133133313331333133313223313133313132313231323132313111   >>    C111123313331323113313331333133313331322331313331313231323132313231311   <<    C1111233133313231133133313331333133313223313133313132313231323132313113   >>      C1111233133313231133133313331333133313223313133313132313231323132313112   >>