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: 30 dogs are barking . 10 more dogs start to bark . how many dogs are barking ?

Answer: 40

Question: lino picked up 292 shells at the seashore in the morning and 324 shells in the afternoon . how many shells did he pick up in all ?

Answer: 616

Question: 13 ducks are swimming in a lake . 20 more ducks come to join them . how many ducks are swimming in the lake ?

Answer:
33