C313212111113331323312111133133313331333133313331333133312111211   >>    C31321211111333132331211113313331333133313331333133313331211121   <<    C313212111113331323312111133133313331333133313331333133312111213   >>      C313212111113331323312111133133313331333133313331333133312111212   >>