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 



 
actor Main
    let _env:Env
    new create(env:Env)=>
        _env=env
        env.input(object iso is InputNotify
            let _e:Main=this
            fun ref apply(data:Array[U8] iso)=>
                _e(consume data)
            fun ref dispose()=>
                None
        end,
            512)
    be apply(s:Array[U8] iso)=>
        let c=String.from_iso_array(consume s)
        let parts:Array[String]=c.split(" ",0)
        var sum:I32=0
        try
            for v in parts.values() do
                sum=sum+match v.read_int[I32](0)?
                |(let x:I32,_)=>x
                end
            end
        end
        _env.out.print(sum.string())
 
 