C111112111133131121133133313331333133313331323133313331333133313331333222232321   >>    C11111211113313112113313331333133313331333132313331333133313331333133322223232   <<    C111112111133131121133133313331333133313331323133313331333133313331333222232323   >>      C111112111133131121133133313331333133313331323133313331333133313331333222232322   >>