C313212111113331323312111133133313331333133313331333133313331333131122323121   >>    C31321211111333132331211113313331333133313331333133313331333133313112232312   <<    C313212111113331323312111133133313331333133313331333133313331333131122323123   >>      C313212111113331323312111133133313331333133313331333133313331333131122323122   >>