A+B   ─── a classic problem in programming contests,   it's given so contestants can gain familiarity with the online judging system being used.



Task

Given two integers,   A and B.

Their sum needs to be calculated.



Input data

Two integers are written in the input stream, separated by space(s):

 



(
−
1000
≤
A
,
B
≤
+
1000
)


{\displaystyle (-1000\leq A,B\leq +1000)}




Output data

The required output is one integer:   the sum of A and B.



Example



 input  

 output  


 2 2 

 4 


 3 2 

 5 



 
class Sum
	**Adds two given integers**
 
	on start
 
		args := program arguments
 
		if args empty
			print to Console.error made !, "No arguments given"
			exit program with error code
 
		if args.count = 1
			print to Console.error made !, "Only one argument given"
			exit program with error code
 
		try
			print integer.parse(args[0]) + integer.parse(args[1])
 
		catch FormatException
			print to Console.error made !, "Arguments must be integers"
			exit program with error code
 
		catch OverflowException
			print to Console.error made !, "Numbers too large"
			exit program with error code
 