C3123223313331322121111331333133313231323223313331333131111212121   >>    C312322331333132212111133133313331323132322331333133313111121212   <<    C3123223313331322121111331333133313231323223313331333131111212123   >>      C3123223313331322121111331333133313231323223313331333131111212122   >>