C111112111133131121133133313331333133313331323221211113313231333131331121   >>    C11111211113313112113313331333133313331333132322121111331323133313133112   <<    C111112111133131121133133313331333133313331323221211113313231333131331123   >>      C111112111133131121133133313331333133313331323221211113313231333131331122   >>