C313212111133131211331333133313331333133313231333133313331333133313221121333121   >>    C31321211113313121133133313331333133313331323133313331333133313331322112133312   <<    C313212111133131211331333133313331333133313231333133313331333133313221121333123   >>      C313212111133131211331333133313331333133313231333133313331333133313221121333122   >>