C111123313121111121111331333133313121111121111133313331333133313232323221   >>    C11112331312111112111133133313331312111112111113331333133313331323232322   <<    C111123313121111121111331333133313121111121111133313331333133313232323223   >>      C111123313121111121111331333133313121111121111133313331333133313232323222   >>