You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Ex Input:
While shopping , Maria bought 35 green towels and 21 white towels . If she gave her mother 34 of them , how many towels did Maria end up with ?

Ex Output:
22


Ex Input:
A teacher had 34 worksheets to grade . If she graded 7 , but then another 36 were turned in , how many worksheets would she have to grade ?

Ex Output:
63


Ex Input:
A group of 3 friends went into a restaurant . The chef already had 6 chicken wings cooked but cooked 3 more for the group . If they each got the same amount how many would each person get ?

Ex Output:

3