C11111333133313232233133313331333133313223313331323132233133323112111   >>    C1111133313331323223313331333133313331322331333132313223313332311211   <<    C11111333133313232233133313331333133313223313331323132233133323112113   >>      C11111333133313232233133313331333133313223313331323132233133323112112   >>