Input (grade 11): Only the size of a guinea pig, he spent the first 44 days of his life in an incubator before zookeeper Thomas DÃ rflein began raising the cub.
Output (grade 12): Knut was only the size of a guinea pig, and had to spend the first 44 days of his life in an incubator before zookeeper Thomas DÃ rflein began raising the cub.