C1111121111331311211331333133313331333133313231333133313311211113313121322321   >>    C111112111133131121133133313331333133313331323133313331331121111331312132232   <<    C1111121111331311211331333133313331333133313231333133313311211113313121322323   >>      C1111121111331311211331333133313331333133313231333133313311211113313121322322   >>