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

179 birds were sitting in a tree . 38 more birds flew up to the tree . how many birds were there altogether in the tree ?
217

ethan has 31 presents . alissa has 22 more than ethan . how many presents does alissa have ?
53

rob is very fond of tall structures . he likes collecting pictures and comparing them . 2 of his favorite buildings are chicago 's sears tower and dubai 's burj khalifa . if burj khalifa stands at 830 meters high and sears stands at 527 meters high how much higher is burj khalifa than sears ?

303

