C111123313331323113313331333133313331323132333133313211232313113121   >>    C11112331333132311331333133313331333132313233313331321123231311312   <<    C111123313331323113313331333133313331323132333133313211232313113123   >>      C111123313331323113313331333133313331323132333133313211232313113122   >>