C111112111133131121133133313331333133313331323133313331333133311212312331   >>    C11111211113313112113313331333133313331333132313331333133313331121231233   <<    C111112111133131121133133313331333133313331323133313331333133311212312333   >>      C111112111133131121133133313331333133313331323133313331333133311212312332   >>