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 



-- demo\rosetta\AplusB.exw
string s = prompt_string("Enter two numbers separated by a space : ")
sequence r = scanf(s,"%d %d")
if length(r)=1 then
    integer {a,b} = r[1], c = a+b
    printf(1,"%d + %d = %d\n",{a,b,c})
else
    printf(1,"invalid input\n")
end if
