C111112111133131121133133313331333133313331323221211113313231333133313332213121   >>    C11111211113313112113313331333133313331333132322121111331323133313331333221312   <<    C111112111133131121133133313331333133313331323221211113313231333133313332213123   >>      C111112111133131121133133313331333133313331323221211113313231333133313332213122   >>