You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Q: There are 38 books on the shelf . Marta put 10 more books on the shelf . How many books are on the shelf now ?

A: 48
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Q: An oil pipe in the sea broke . Before engineers started to fix the pipe , 6522 liters of oil leaked into the water . While the engineers worked , the pipe leaked 5165 more liters of oil . In all , how many liters of oil leaked into the water ?

A: 11687
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Q: On her vacation last summer , Trisha walked all over New York City to buy souvenirs . First , she walked 0.1111111111111111 mile from her hotel to a postcard shop . Then she walked 0.1111111111111111 mile from the postcard shop to a T - shirt shop and 0.6666666666666666 mile from the T - shirt shop back to the hotel . How many miles did Trisha walk in all ?

A:
0.8888888888888888
****