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.

Example Input: a worker at a medical lab is studying blood samples . the first sample contained 1410 blood cells . the second 1 contained 6908 more than the first . about how many blood cells were in the second sample ?
Example Output: 8318

Example Input: for halloween debby and her sister combined the candy they received . debby had 32 pieces of candy while her sister had 42 if they ate 35 pieces the first night how many pieces do they have left ?
Example Output: 39

Example Input: omar loves to play checkers . he played 37 games yesterday . he played 49 games today . omar lost 18 games . how many games did he win ?
Example Output:
68