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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 (", ").

Paragraph- Sent 1: He was gone, like the shades of which he had spoken, and Mademoiselle and I were left staring at the black rectangle of the broken door.
Sent 2: I drew a deep breath and looked about me quickly.
Sent 3: It seemed somehow as though a spell were broken, as though the curtain had lowered on some final act in the theatre.
Sent 4: Slowly my mind seemed to free itself from a hundred illusions, and to move along more logical paths.
Sent 5: Brutus went to the arms rack in the corner, and selected a rusted cutlass from the small arms that still rested there, thrust it at me playfully and grinned.
Sent 6: For a minute or even more, the single log that was still burning in the fireplace hissed drowsily, and I could hear the vines tapping gently on the windows.
Sent 7: Then I heard a pistol shot, followed by a hoarse cry.
Sent 8: Mademoiselle started to her feet, and then sank back in her chair again, and from where I was standing I could see that her face was white and her hands were trembling.
Sent 9: So she loved him.
Sent 10: My hand gripped hard against the back of a chair.
Sent 11: Why should I have hoped she did not?.
Question: About how long does it take for the person who left the room to be involved in a shooting?.
Output:
1, 6, 7.