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.

Ex Input:
Allie counted the leftover ice cream after a sundae party . She had 0.3333333333333333 carton of rocky road ice cream , 0.3333333333333333 carton of cookie dough ice cream , and 0.16666666666666666 carton of strawberry cheesecake ice cream . How many cartons of ice cream did Allie have in all ?

Ex Output:
0.8333333333333334


Ex Input:
Tim had 50 cents . He paid 45 cents for a candy bar . How much change will he get ?

Ex Output:
5


Ex Input:
There are 64 pigs in the barn . Some more come to join them . Now there are 86 pigs . How many pigs came to join them ?

Ex Output:

22