C111112111133131121133133313331323133313221131211113313113313221131323233121   >>    C11111211113313112113313331333132313331322113121111331311331322113132323312   <<    C111112111133131121133133313331323133313221131211113313113313221131323233123   >>      C111112111133131121133133313331323133313221131211113313113313221131323233122   >>