C31321211111333132331211113313331333133313331333133313331333133313132213121   >>    C3132121111133313233121111331333133313331333133313331333133313331313221312   <<    C31321211111333132331211113313331333133313331333133313331333133313132213123   >>      C31321211111333132331211113313331333133313331333133313331333133313132213122   >>