C11111333133313232233133313331333133313332322331331121111131113121   >>    C1111133313331323223313331333133313331333232233133112111113111312   <<    C11111333133313232233133313331333133313332322331331121111131113123   >>      C11111333133313232233133313331333133313332322331331121111131113122   >>