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 



 
Lambdatalk works in a wiki, lambdatank.
 
1) Open the wiki frame-editor and define a contenteditable box
 
{def box
 {pre
  {@ contenteditable 
     style="box-shadow:0 0 8px #000; padding:5px;" 
            ondblclick="this.innerHTML=LAMBDATALK.eval_forms(this.innerHTML)"
}}}
-> blockedit
 
2) create this box
 
{box}
 
   and close the wiki frame-editor. The wiki-page displays a shadowed box, 
(here simulated as a space between square brackets)
 
[                                                                    ]
 
3) Enter any valid lambdatalk expression, for instance
 
1+2+3 is equal to {+ 1 2 3}
 
then double-click. The expression is evaluated and the box displays
 
[ 1+2+3 is equal to 6                                                ]
 
Several boxes can be created in the wiki page 
with any valid lambdatalk expressions.
 