C313212111133131211331333133313331333133313231333133313331333133313221322123121   >>    C31321211113313121133133313331333133313331323133313331333133313331322132212312   <<    C313212111133131211331333133313331333133313231333133313331333133313221322123123   >>      C313212111133131211331333133313331333133313231333133313331333133313221322123122   >>