D331212121133132233131323223313233313233313223313233313232112322221   >>    D33121212113313223313132322331323331323331322331323331323211232222   <<    D331212121133132233131323223313233313233313223313233313232112322223   >>      D331212121133132233131323223313233313233313223313233313232112322222   >>