C1111121111331311211331333133313331333133312111112111133132211131   >>    C111112111133131121133133313331333133313331211111211113313221113   <<    C1111121111331311211331333133313331333133312111112111133132211133   >>      C1111121111331311211331333133313331333133312111112111133132211132   >>