C31231211113313112133313331311331333133313331333133313311232322131   >>    C3123121111331311213331333131133133313331333133313331331123232213   <<    C31231211113313112133313331311331333133313331333133313311232322133   >>      C31231211113313112133313331311331333133313331333133313311232322132   >>