D331212121133132233131323223313233313231313331311331323131333132211331   >>    D33121212113313223313132322331323331323131333131133132313133313221133   <<    D331212121133132233131323223313233313231313331311331323131333132211333   >>      D331212121133132233131323223313233313231313331311331323131333132211332   >>