C313212111113331323312111133133313331333133313331333133313331333133112112221   >>    C31321211111333132331211113313331333133313331333133313331333133313311211222   <<    C313212111113331323312111133133313331333133313331333133313331333133112112223   >>      C313212111113331323312111133133313331333133313331333133313331333133112112222   >>