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.

Example Input: 3 owls were sitting on the fence . 2 more owls joined them . How many owls are on the fence now ?
Example Output: 5

Example Input: Carlos has 58 blocks . He gives 21 to Rachel . How many blocks will Carlos have ?
Example Output: 37

Example Input: Joe had 50 toy cars . If he gets 12 more cars , how many cars will he have then ?
Example Output:
62