C111123313331323113313331333133313331323133113313331311332212311   >>    C11112331333132311331333133313331333132313311331333131133221231   <<    C111123313331323113313331333133313331323133113313331311332212313   >>      C111123313331323113313331333133313331323133113313331311332212312   >>