You are given a math word problem and you are supposed to apply a single mathematical operator 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: the litter patrol picked up 10 glass bottles and 8 aluminum cans on saturday . how many pieces of litter did they pick up altogether ?

Output: 18

Input: Consider Input: ellen has 6 more balls than marin . marin has 9 balls . how many balls does ellen have ?

Output: 15

Input: Consider Input: todd has some gum . steve gave him 16 more pieces of gum . now todd has 54 pieces of gum . how many pieces did todd have to start with ?
Output: 38