C31321211111333132331211113313331333133313331333133313331333132213311231   >>    C3132121111133313233121111331333133313331333133313331333133313221331123   <<    C31321211111333132331211113313331333133313331333133313331333132213311233   >>      C31321211111333132331211113313331333133313331333133313331333132213311232   >>