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:
Dan has 32 green and 38 violet marbles . Mike took 23 of Dan 's green marbles . How many green marbles does Dan now have ?

Ex Output:
9

Ex Input:
At a pizza party , Mason and his friends drank 2.6666666666666665 bottles of lemon - lime soda and 2.6666666666666665 bottles of cola . How much soda did they drink in all ?

Ex Output:
5.333333333333333

Ex Input:
A cake recipe requires 0.6 cup of sugar for the frosting and 0.2 cup of sugar for the cake . How much sugar is that altogether ?

Ex Output:
0.8