D331212121133131333131323223313232233132313223313113313232121111   >>    D33121212113313133313132322331323223313231322331311331323212111   <<    D331212121133131333131323223313232233132313223313113313232121113   >>      D331212121133131333131323223313232233132313223313113313232121112   >>