C212313222213113313112113121111331323132233133313331121133133313221223311   >>    C21231322221311331311211312111133132313223313331333112113313331322122331   <<    C212313222213113313112113121111331323132233133313331121133133313221223313   >>      C212313222213113313112113121111331323132233133313331121133133313221223312   >>