C1111121111331311211331333133313331333133313221211113313331333132313113123121   >>    C111112111133131121133133313331333133313331322121111331333133313231311312312   <<    C1111121111331311211331333133313331333133313221211113313331333132313113123123   >>      C1111121111331311211331333133313331333133313221211113313331333132313113123122   >>