C1111121111331311211331333133313331322133313331311331333132233133313233221231   >>    C111112111133131121133133313331333132213331333131133133313223313331323322123   <<    C1111121111331311211331333133313331322133313331311331333132233133313233221233   >>      C1111121111331311211331333133313331322133313331311331333132233133313233221232   >>