D331212121133131333131323223313232233132313223313231323131313231221   >>    D33121212113313133313132322331323223313231322331323132313131323122   <<    D331212121133131333131323223313232233132313223313231323131313231223   >>      D331212121133131333131323223313232233132313223313231323131313231222   >>