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.

Input: Consider Input: Context: At the arcade Dave had won 14 tickets and lost 2 tickets. If he used 10 to buy some toys

Question: How many tickets did Dave have left?

Output: 2

Input: Consider Input: Context: 53 campers went rowing in the morning 48 campers went rowing in the afternoon and 49 campers went rowing in the evening.

Question: How many more campers went rowing in the morning than in the evening?

Output: 4

Input: Consider Input: Context: Mary is baking a cake. The recipe calls for 10 cups of flour 2 cups of sugar and 80 cups of salt. She already put in 7 cups of flour.

Question: How many more cups of flour than cups of sugar does she need to add now?
Output: 1