C111113331333132322331333133313331333133323223313311211111213331333132213121   >>    C11111333133313232233133313331333133313332322331331121111121333133313221312   <<    C111113331333132322331333133313331333133323223313311211111213331333132213123   >>      C111113331333132322331333133313331333133323223313311211111213331333132213122   >>