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.

Input: Consider Input: Luke was helping the cafeteria workers pick up lunch trays , but he could only carry 4 trays at a time . If he had to pick up 20 trays from one table and 16 trays from another , how many trips will he make ?

Output: 9


Input: Consider Input: Wanda has 4 blocks . Theresa gives Wanda 79 more . How many blocks does Wanda have in all ?

Output: 83


Input: Consider Input: Daniel had some noodles . He gave 12 noodles to William . Now Daniel only has 54 noodles . How many noodles did Daniel have to begin with ?


Output: 66