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.

Q: David has 8 bananas . He gets 50 more from Christopher . Later , David buys 9 cards at the store . How many bananas does David have in all ?

A: 58
****
Q: John weighs 81 pounds . Roy weighs 4 pounds . How much heavier is John than Roy ?

A: 77
****
Q: Fred went to 36 basketball games this year , but missed 35 . He went to 11 games last year . How many basketball games did Fred go to in total ?

A:
47
****