C111112111133131121133133313331333133313331323133313331333131211111221123231   >>    C11111211113313112113313331333133313331333132313331333133313121111122112323   <<    C111112111133131121133133313331333133313331323133313331333131211111221123233   >>      C111112111133131121133133313331333133313331323133313331333131211111221123232   >>