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 



-module(aplusb).
-export([start/0]).
 
start() ->
    case io:fread("","~d~d") of
        eof -> ok;
        {ok, [A,B]} ->
            io:format("~w~n",[A+B]),
            start()
    end.