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: Ronald has 13 blocks . Martha has with 4 blocks . Martha finds another 80 . How many blocks does Martha end with ?

Output: 84


Input: Consider Input: Rachel bought two coloring books . One had 23 pictures and the other had 32 . After one week she had already colored 44 of the pictures . How many pictures does she still have to color ?

Output: 11


Input: Consider Input: A waiter at ' The Greasy Spoon ' restaurant had 26 customers to wait on . During the lunch rush he added another 27 customers . If 27 of the customers did n't leave him a tip , how many customers did leave a tip ?


Output: 26