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

Q: Context: Winter is almost here and most animals are migrating to warmer countries. There are 3 bird families living near the mountain. 26 new bird families came to live near the mountain from the arctic while 2 bird families flew away further south for winter. 

 Question: How many bird families were left near the mountain?

A: 27
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Q: Context: Helen the hippo and her friends are preparing for thanksgiving at Helen's house. Helen baked 527 chocolate chip cookies and 86 raisin cookies yesterday. And she baked 86 raisin cookies and 554 chocolate chip cookies this morning. 

 Question: How many chocolate chip cookies did Helen bake?

A: 1081
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Q: Context: In a school there are 315 girls and 309 boys. There are also 772 teachers 

 Question: How many people are there in that school?

A:
1396
****