Definition: You are given a paragraph, with numbered sentences, and a question. Write the numbers of the sentences needed to answer the given question. Separate multiple sentence numbers with a comma (", "). E.g. "1, 2" would be the correct response if Sent 1 and Sent 2 are needed to answer the given question (do not include sentences that contain no information that is necessary to answer the question). Sort the sentence numbers in an increasing order (i.e., '1, 2', instead of '2, 1'). Your answer should not contain anything than the sentence numbers separated by a comma (e.g. '1, 2, 3, 4'). The given question requires more than one sentence to answer. So, your answer must contain at least one comma (", ").
Input: Paragraph- Sent 1: Other men followed, and in the fortune of each Mr. Thorndike found himself, to his surprise, taking a personal interest.
Sent 2: It was as good as a play.
Sent 3: It reminded him of the Sicilians he had seen in London in their little sordid tragedies.
Sent 4: Only these actors were appearing in their proper persons in real dramas of a life he did not know, but which appealed to something that had been long untouched, long in disuse.
Sent 5: It was an uncomfortable sensation that left him restless because, as he appreciated, it needed expression, an outlet.
Sent 6: He found this, partially, in praising, through Andrews, the young judge who had publicly rebuked him.
Sent 7: Mr. Thorndike found him astute, sane; his queries intelligent, his comments just.
Sent 8: And this probation officer, she, too, was capable, was she not?
Sent 9: Smiling at his interest in what to him was an old story, the younger man nodded.
Sent 10: “I like her looks,” whispered the great man.
Sent 11: “Like her clear eyes and clean skin.
Sent 12: She strikes me as able, full of energy, and yet womanly.
Sent 13: These men when they come under her charge,” he insisted, eagerly, “need money to start again, don’t they?” He spoke anxiously.
Sent 14: He believed he had found the clew to his restlessness.
Sent 15: It was a desire to help; to be of use to these failures who had fallen and who were being lifted to their feet.
Sent 16: Andrews looked at him curiously.
Sent 17: “Anything you give her,” he answered, “would be well invested.” “If you will tell me her name and address?” whispered the banker.
Sent 18: He was much given to charity, but it had been perfunctory, it was extended on the advice of his secretary.
Sent 19: In helping here, he felt a genial glow of personal pleasure.
Sent 20: It was much more satisfactory than giving an Old Master to his private chapel. 
Question: In what sense are the "failures" that Mr. Thorndike wants to help "being lifted to their feet?".
Output:
8, 13, 15.