You are provided with an arithmetic question. Your task is to compute the solution using the given arithmetic operations. The only arithmetic operators needed to answer the questions are'+'(addition) and'-'(subtraction). The answer should be correct to one decimal place.

Ex Input:
Sam had 49 pennies and 24 nickels in his bank. His dad gave him 39 nickels and 31 quarters. How many nickels does he have now?

Ex Output:
63.0


Ex Input:
Darnel sprinted 0.87 lap and then took a break by jogging 0.77 lap.How much farther did Darnel sprint than jog?

Ex Output:
0.1


Ex Input:
There are 43 pencils in the drawer and 19 pencils on the desk. Danplaced 16 pencils on the desk. How many pencils are now there intotal?

Ex Output:

78.0