C132233133112121111331333133313331311331313331333133313233133231211   >>    C13223313311212111133133313331333131133131333133313331323313323121   <<    C132233133112121111331333133313331311331313331333133313233133231213   >>      C132233133112121111331333133313331311331313331333133313233133231212   >>