C313212111113331323312111133133313331333133313331333133313213121   >>    C31321211111333132331211113313331333133313331333133313331321312   <<    C313212111113331323312111133133313331333133313331333133313213123   >>      C313212111113331323312111133133313331333133313331333133313213122   >>