C111112111133131121133133313331323133313221211111333133313331333133313332311231   >>    C11111211113313112113313331333132313331322121111133313331333133313331333231123   <<    C111112111133131121133133313331323133313221211111333133313331333133313332311233   >>      C111112111133131121133133313331323133313221211111333133313331333133313332311232   >>