C111123313331323113313331333133313331323323113313331333131232223311   >>    C11112331333132311331333133313331333132332311331333133313123222331   <<    C111123313331323113313331333133313331323323113313331333131232223313   >>      C111123313331323113313331333133313331323323113313331333131232223312   >>