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.

Input: Consider Input: we ordered 21 pizzas . each pizza has 8 slices . how many slices of pizza are there altogether ?

Output: 168


Input: Consider Input: haley 's favorite band was holding a concert where tickets were 4 dollars each . haley bought 3 tickets for herself and her friends and 5 extra tickets in case anyone else wanted to go . how much did she spend ?

Output: 32


Input: Consider Input: there are 30 students in a class . if the teacher put them into groups with 5 students in each group how many groups would she have ?


Output: 6