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.
Example: Last year , 90171 people were born in a country , and 16320 people immigrated to it . How many new people began living in the country last year ?
Example solution: 106491
Example explanation: Total people living in the country = born - immigrated = 90171 - 16320 = 106491

Problem: George had 30 dollars . For his birthday he got 16 more dollars but spent 38 on a new game . How much money does he have now ?

Solution: 8