C111123313121111121111331333133313331313331323113313222313232221   >>    C11112331312111112111133133313331333131333132311331322231323222   <<    C111123313121111121111331333133313331313331323113313222313232223   >>      C111123313121111121111331333133313331313331323113313222313232222   >>