TASK DEFINITION: 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.
PROBLEM: Context: A waiter had 3 customers. After some left he still had 4 customers. 

 Question: How many more customers stayed behind than those that left?

SOLUTION: 5

PROBLEM: Context: Allan brought 5 balloons. If Allan and Jake brought total of 6 balloons to the park 

 Question: How many balloons did Jake bring to the park?

SOLUTION: 1

PROBLEM: Context: After Jessie started to go jogging everyday she lost 35 kilograms. She weighed 69 kilograms before beginning jogging. 

 Question: How much does she weigh now?

SOLUTION:
34