package backjoon;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.util.StringTokenizer;

// A+B - 4

public class _10951 {

public static void main(String[] args) throws IOException {

//sol. memory 11596 kb runtime 84 ms

//필요한 기본 객체들 선언

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

StringTokenizer st;

String line;

while ((line = br.readLine()) != null) {

st = new StringTokenizer(line, " ");

int a = Integer.parseInt(st.nextToken());

int b = Integer.parseInt(st.nextToken());

System.out.println(a+b);

}

br.close();

}

}