C3132121111133313233121111331333133313331333133313223313231322121   >>    C313212111113331323312111133133313331333133313331322331323132212   <<    C3132121111133313233121111331333133313331333133313223313231322123   >>      C3132121111133313233121111331333133313331333133313223313231322122   >>