C111112111133131121133133313331333133313331312111133133313232233113121121   >>    C11111211113313112113313331333133313331333131211113313331323223311312112   <<    C111112111133131121133133313331333133313331312111133133313232233113121123   >>      C111112111133131121133133313331333133313331312111133133313232233113121122   >>