Go: package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

var sc = bufio.NewScanner(os.Stdin)

//Sliceconvtoi ...
func Sliceconvtoi() []int {
	strs := strings.Split(sc.Text(), " ")

	var ints []int
	var x int

	for _, s := range strs {
		x, _ = strconv.Atoi(s)
		ints = append(ints, x)
	}

	return ints
}

func main() {

	for sc.Scan() {
		i := Sliceconvtoi()
		fmt.Println(i[0] + i[1])
	}

}

C++: #import <iostream>
int main(){int a,b; while(std::cin>>a>>b){std::cout<<a+b<<'\n';}}

C++: #include <iostream>

using namespace std;

int main() {
    int a, b;

    while(cin >> a >> b && !cin.eof()) {
        cout << a+b << endl;
    }
    return 0;
}

C++: #include<stdio.h>

int main(){
    int a, b;
    while( scanf_s("%d %d", &a, &b) != EOF ){
        printf("%d\n", a + b);
    }
    return 0;
}

C++: #include <iostream>

using namespace std;

int main() {
  int a, b;
  while (cin >> a >> b)
    cout << a + b << endl;
}

C++: #include <cstdio>

#define rep_(v, f, l) for (int v = (f); v < (l); ++v)
#define rep(v, n) rep_(v, 0, n)
#define lep(v, n) rep_(v, 1, n + 1)
using namespace std;
typedef long long int lint;
static inline int in() {
	int x;
	scanf("%d", &x);
	return x;
}
static inline lint inl() {
	lint x;
	scanf("%lld", &x);
	return x;
}
int main() {
	int a, b;
	while (~scanf("%d %d", &a, &b)) {
		printf("%d\n", a + b);
	}
	return (0);
}

C++: 
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <math.h>
using namespace std;

int main() {
    int a,b;
    while(cin >> a){
        cin >> b;
        cout << a + b << endl;
    }
    return 0;
}

C++: #include <stdio.h>

int main()
{
        int a, b;
        while (scanf("%d %d", &a, &b) != EOF) {
                printf("%d\n", a+b);
        }
        return 0;
}

C++: #include<iostream>
#include<cstdio>
using namespace std;

int main(){
  int a,b;
  while(cin>>a>>b){
    cout<<a+b<<endl;
  }
  return 0;

}

C++: #include <iostream>

using namespace std;

int main(){

while(cin){
int a,b;
cin>>a>>b;
cout<<a+b<<endl;
}
return 0;

}

}

C++: #include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(n);i++)
typedef long long ll;
int main(){
	ll a,b;
	while(cin>>a>>b)cout<<a+b<<endl;
	return 0;
}

C++: #include<stdio.h>
#include<iostream>

using namespace std;
int main() {
	int a, b;
	while (1) {
		if (scanf("%d %d", &a, &b) == EOF)break;
		else {
			cout << a + b << endl;
		}
	}
}

C++: #define _CRT_SECURE_NO_WARNINGS
#include<iostream>
//#include<algorithm>
//#include<cmath>
//#include<string>
using namespace std;
int main() {
	int a, b;
	while (cin >> a >> b)
		cout << a + b << endl;
	return 0;
}

C++: #include <cstdio>
int main(int argc, char *argv[]) {
	int a,b;
	while (EOF != fscanf(stdin, "%d %d", &a, &b)) {
		printf("%d\n", a+b);
	}
	return 0;
}

C++: #include <stdio.h>
 
int main(void) {
    long long a,b;
    while(scanf("%lld%lld",&a,&b)==2) {
        printf("%lld\n",a+b);
    }
    return 0;
}

C++: #include <iostream>
using namespace std;

int main() {
	int a,b;
	while(cin>>a>>b){
			cout<<a+b<<endl;
	}
	return 0;
}

C++: //include
//------------------------------------------
#include <bits/stdc++.h>

using namespace std;

//typedef
//------------------------------------------
typedef vector<int> vi;
typedef vector<vi> vii;
typedef vector<string> vs;
typedef vector<bool> vb;
typedef vector<vb> vbb;
typedef pair<int, int> pii;
typedef long long ll;
typedef unsigned long long ull;

//container util
//------------------------------------------
#define all(a)  (a).begin(),(a).end()
#define rall(a) (a).rbegin(), (a).rend()
#define pb push_back
#define mp make_pair
#define iter(i,c) for(auto i=(c).begin(); i!=(c).end(); ++i)

//repetition
//------------------------------------------
#define loop(i,a,b) for(int i=(a);i<(b);++i)
#define rep(i,n)  loop(i,0,n)

//constant
//--------------------------------------------
const double eps = 1e-10;
const double pi  = acos(-1.0);
const double inf = (int)1e8;

// output vector
// ------------------------------------------
namespace std {
    template<typename T> ostream & operator<<(ostream& os, vector<T> const& v){
        for(auto it=v.begin(); it!=v.end(); ++it){
            os << *it << (it+1==v.end() ? "" : ",");
        }
        return os;
    }
}

//clear memory
#define clr(a) memset((a), 0 ,sizeof(a))

int gcd(int a, int b){
   int tmp;
   while(a%b!=0){
      tmp=a%b;
      a=b;
      b=tmp;
   }
}
 
int lcm(int a,int b){
   return a*b/gcd(a,b);
}
 
bool prime_number(int n){
   if(n==0||n==1) return false;
   vb a(n+1);
   fill(all(a),true);
   loop(i,2,n/2+1){
      if(!a[i]) continue;
      for(int j=2;i*j<=n;j++){
         a[i*j]=false;
      }
   }
   return a[n];
}

int main(){
   int a,b;
   while(cin >> a >> b){
      cout << a+ b << endl;
   }
}

C++: #include <iostream>
using namespace std;
int main()
{
    int a, b;
    while (cin >> a >> b)
    {
        cout << a+b << endl;
    }
    return 0;
}

C++: #include <cardio>
int main(){
int a, b;

while(scanf("%d%d",&a,&b) != EOF){
printf("%d\n",a+b);
}

return 0;
}

C++: #include <iostream>
using namespace std;

int main(void) {
  int a, b;
  while (cin >> a >> b) {
    cout << a + b << endl;
  }
  return 0;
}

C++: #include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
using namespace std;

int main(){
   int a,b;
   
   while(cin>>a>>b)
      cout<<a+b<<endl;
   return 0;
}

C++: #include <cstdio>
#include <utility>
using namespace std;

#define gcu getchar_unlocked
int in() {
	int n = 0, c = gcu();
	bool minus = false; if (c == '-') minus = true, c = gcu();
	do {n = 10 * n + (c - '0'), c = gcu();} while (c >= '0');
	//return n; }
	return minus ? -n : n; }
//void scan(string &s) {for (char c; !isspace(c = gcu()); s += c);}
bool scan(int &n) {int c=gcu();if(c==EOF)return false;ungetc(c,stdin);n=in();return true;}
#define pcu putchar_unlocked
template <typename T>
void out(T n) {
	static char buf[20];
	char *p = buf;
	if(n < 0) pcu('-'), n *= -1;
	if (!n) *p++ = '0';
	else while (n) *p++ = n % 10 + '0', n /= 10;
	while (p != buf) pcu(*--p); }
void out(const char *s){while(*s)pcu(*s++);}
void out(char c){pcu(c);}
//void out(string &s){for (char c: s) pcu(c);}
template <typename head, typename... tail>
void out(head&& h, tail&&... t){out(h);out(move(t)...);}
//template <typename T>
//void out(vector<T> &v){for(T &x:v)out(' '),out(x);out('\n');}
//void out(vector<T> &v){for(T &x:v)out(&x == &v[0]?"":" "),out(x);out('\n');}
#undef svo

int main() {
	int a;
	while (scan(a))
		out(a + in(), '\n');
}

C++: #include <iostream>
int a,b;
int main(){
while(std::cin>>a>>b){
if(a+b>2147483647)std::cout<<"fijeoawgjewjoagj";
else std::cout<<a+b<<std::endl;
}
}

C++: #include<stdio.h>

int main(){
    int a, b;
    while( scanf("%d %d", &a, &b) != EOF ){
        printf("%d\n", a + b);
    }
    return 0;
}

C++: #include <iostream>
int a,b;
int main(){
while(std::cin>>a>>b){
long long c=0;
for(long long i=0;i<1000000000000000000LL;i++)c++;
std::cout<<a+b+c%2<<std::endl;
}
}

C++: #include<iostream>
#include <cstdio>

using namespace std;

int main() {
	int a, b;
	while (scanf("%d %d", &a, &b) != EOF) {
		printf("%d\n", a + b);
	return 0;
}