You are given a math word problem and you are supposed to only use subtraction on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

[EX Q]: Context: Jerry had some action figures on a shelf in his room. Later he added 7 more action figures to the shelf. If there are a total of 10 action figures on his shelf now 

 Question: How many action figures did he have initially on the shelf?
[EX A]: 3

[EX Q]: Context: Ed had 6 more marbles than Doug. Doug lost 7 of his marbles at the playground. If Ed had 22 marbles 

 Question: How many marbles does Doug have now?
[EX A]: 9

[EX Q]: Context: Mary is baking a cake. The recipe calls for 12 cups of flour 5 cups of sugar and 49 cups of salt. She already put in 11 cups of flour. 

 Question: How many more cups of flour does she need to add?
[EX A]:
1