C111123313331323113313331333133313331323132311233132322333131221   >>    C11112331333132311331333133313331333132313231123313232233313122   <<    C111123313331323113313331333133313331323132311233132322333131223   >>      C111123313331323113313331333133313331323132311233132322333131222   >>