C1111121111331311211331333133313331333133313221211113313331333133312112113331   >>    C111112111133131121133133313331333133313331322121111331333133313331211211333   <<    C1111121111331311211331333133313331333133313221211113313331333133312112113333   >>      C1111121111331311211331333133313331333133313221211113313331333133312112113332   >>