C111123313331323113313331333133313121111331322211232313231322331   >>    C11112331333132311331333133313331312111133132221123231323132233   <<    C111123313331323113313331333133313121111331322211232313231322333   >>      C111123313331323113313331333133313121111331322211232313231322332   >>