C111112111133131121133133313331333131131211113313331323213231211   >>    C11111211113313112113313331333133313113121111331333132321323121   <<    C111112111133131121133133313331333131131211113313331323213231213   >>      C111112111133131121133133313331333131131211113313331323213231212   >>