C111112111133131121133133313331333133313121111131211113313332233132313223311   >>    C11111211113313112113313331333133313331312111113121111331333223313231322331   <<    C111112111133131121133133313331333133313121111131211113313332233132313223313   >>      C111112111133131121133133313331333133313121111131211113313332233132313223312   >>