Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.
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Question: 52 children and 29 adults went to the track meet . the stadium has 95 seats . how many seats were empty ?

Answer: 14

Question: charlie has 31 more snowballs than lucy . she has 19 snowballs . how many does charlie have ?

Answer: 50

Question: paul and vinnie deliver newspapers . paul made $ 14 in tips . vinnie made $ 16 more than paul . how much did vinnie make ?

Answer:
30