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:
Each of farmer Cunningham's 6048 lambs is either black or white.There are 193 white ones. How many of Farmer Cunningham's lambsare black?

Ex Output:
5855.0


Ex Input:
Tom purchased a Batman game for $13.60, and a Superman gamefor $5. Tom already owns 2 games. How much did Tom spend onvideo games?

Ex Output:
18.6


Ex Input:
There are 37 short bushes and 30 tall trees currently in the park. Parkworkers will plant 20 short bushes today. How many short busheswill the park have when the workers are finished?

Ex Output:

57.0