C313212111113331323312111133133313331333133313331333133313331333133112213222221   >>    C31321211111333132331211113313331333133313331333133313331333133313311221322222   <<    C313212111113331323312111133133313331333133313331333133313331333133112213222223   >>      C313212111113331323312111133133313331333133313331333133313331333133112213222222   >>