C31321211111333132331211113313331333133313331333133313331333132213231221   >>    C3132121111133313233121111331333133313331333133313331333133313221323122   <<    C31321211111333132331211113313331333133313331333133313331333132213231223   >>      C31321211111333132331211113313331333133313331333133313331333132213231222   >>