C1111121111331311211331333133313331322133313331311331333132233133313232211211   >>    C111112111133131121133133313331333132213331333131133133313223313331323221121   <<    C1111121111331311211331333133313331322133313331311331333132233133313232211213   >>      C1111121111331311211331333133313331322133313331311331333132233133313232211212   >>