C111123313121111121111331333133313121111121111133313331333133313231323223313231   >>    C11112331312111112111133133313331312111112111113331333133313331323132322331323   <<    C111123313121111121111331333133313121111121111133313331333133313231323223313233   >>      C111123313121111121111331333133313121111121111133313331333133313231323223313232   >>