D331212121133132233131323223313233313233313223313231333133313112211221   >>    D33121212113313223313132322331323331323331322331323133313331311221122   <<    D331212121133132233131323223313233313233313223313231333133313112211223   >>      D331212121133132233131323223313233313233313223313231333133313112211222   >>