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.

[EX Q]: Fred has 5 yellow balloons , Sam has 6 yellow balloons , and Mary has 7 yellow balloons . The balloons cost 5 dollars . How many yellow balloons do they have in total ?
[EX A]: 18

[EX Q]: Marilyn starts with 51 bottle caps . She shares 36 with Nancy . How many bottle caps does Marilyn end with ?
[EX A]: 15

[EX Q]: Shirley starts with 98 eggs . She buys 8 more . How many eggs does Shirley end with ?
[EX A]:
106