C313212111113331323312111133133313331333133313331333133313331322133313231313121   >>    C31321211111333132331211113313331333133313331333133313331333132213331323131312   <<    C313212111113331323312111133133313331333133313331333133313331322133313231313123   >>      C313212111113331323312111133133313331333133313331333133313331322133313231313122   >>