C111112111133131121133133313331333133313121111133313222331213221   >>    C11111211113313112113313331333133313331312111113331322233121322   <<    C111112111133131121133133313331333133313121111133313222331213223   >>      C111112111133131121133133313331333133313121111133313222331213222   >>