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:
next in their itinerary was the insectarium home to hundreds of insect species . penny who likes butterflies and ants took pictures of the different species . she was able to capture 60 species of butterflies 15 species of ants and 20 species of other insects . how many species of insects did penny capture ?

Ex Output:
95

Ex Input:
mr. peter harvested some pears . he picked 43 kg of the pears into a bag and 35 kg of the pears into another bag . if there were still 15 kg of pears left unpacked how many kilograms of pears did mr. peter harvest ?

Ex Output:
93

Ex Input:
it is 78 miles to grandma 's house . mr. welch drove 35 miles . he stopped to buy a pie for dessert . then he drove 18 miles and stopped to put gas in the car . how many more miles until he reaches grandma 's house ?

Ex Output:
25