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 



use std::io;
 
fn main() {
    let mut line = String::new();
    io::stdin().read_line(&mut line).expect("reading stdin");
 
    let mut i: i64 = 0;
    for word in line.split_whitespace() {
        i += word.parse::<i64>().expect("trying to interpret your input as numbers");
    }
    println!("{}", i);
}