C1111121111331311211331333133313331333131211113313221211111333132223121   >>    C111112111133131121133133313331333133313121111331322121111133313222312   <<    C1111121111331311211331333133313331333131211113313221211111333132223123   >>      C1111121111331311211331333133313331333131211113313221211111333132223122   >>