C3132121111133313233121111331333133313331333133313331333133313113313232121121   >>    C313212111113331323312111133133313331333133313331333133313331311331323212112   <<    C3132121111133313233121111331333133313331333133313331333133313113313232121123   >>      C3132121111133313233121111331333133313331333133313331333133313113313232121122   >>