C1111121111331311211331333133313331333133313121111331333112331322221   >>    C111112111133131121133133313331333133313331312111133133311233132222   <<    C1111121111331311211331333133313331333133313121111331333112331322223   >>      C1111121111331311211331333133313331333133313121111331333112331322222   >>