C111123313121111121111331333133313331333112221211233132322121121   >>    C11112331312111112111133133313331333133311222121123313232212112   <<    C111123313121111121111331333133313331333112221211233132322121123   >>      C111123313121111121111331333133313331333112221211233132322121122   >>