C313212111133131211331333133313331333133312111133133313331333132313221121   >>    C31321211113313121133133313331333133313331211113313331333133313231322112   <<    C313212111133131211331333133313331333133312111133133313331333132313221123   >>      C313212111133131211331333133313331333133312111133133313331333132313221122   >>