C111112111133131121133133313331333133313331323221211113313231333132322331211   >>    C11111211113313112113313331333133313331333132322121111331323133313232233121   <<    C111112111133131121133133313331333133313331323221211113313231333132322331213   >>      C111112111133131121133133313331333133313331323221211113313231333132322331212   >>