C111123313331323113313331323133313331311331311331333132313211231   >>    C11112331333132311331333132313331333131133131133133313231321123   <<    C111123313331323113313331323133313331311331311331333132313211233   >>      C111123313331323113313331323133313331311331311331333132313211232   >>