C3132121111133313233121111331333133313331333133313331333133313221333132213121   >>    C313212111113331323312111133133313331333133313331333133313331322133313221312   <<    C3132121111133313233121111331333133313331333133313331333133313221333132213123   >>      C3132121111133313233121111331333133313331333133313331333133313221333132213122   >>