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 



10100000000000100000000000000000   0. -5 to c     acc = -A
01100000000001010000000000000000   1. Sub. 6      acc -= B
11100000000001100000000000000000   2. c  to 7     X = acc
11100000000000100000000000000000   3. -7 to c     acc = -X
00000000000001110000000000000000   4. Stop
10100100000000000000000000000000   5. 37          A
00111000000000000000000000000000   6. 28          B
00000000000000000000000000000000   7. 0           X