D331212121133131333131323223313232233132313223313113313231232311311   >>    D33121212113313133313132322331323223313231322331311331323123231131   <<    D331212121133131333131323223313232233132313223313113313231232311313   >>      D331212121133131333131323223313232233132313223313113313231232311312   >>