Go: package main

import "fmt"

func main() {
	var num1, num2 int
	fmt.Scan(&num1, &num2)

	fmt.Println((num1 + num2) / 2)
}

C++: #include <algorithm>
#include <cstdio>
#include <iostream>
#include <map>
#include <cmath>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <vector>
#include <stdlib.h>
#include <stdio.h>
#include <bitset>
#include <cstring>
#include <deque>
#include <iomanip>
#include <limits>
#include <fstream>
using namespace std;
#define FOR(I,A,B) for(int I = (A); I < (B); ++I)
#define CLR(mat) memset(mat, 0, sizeof(mat))
typedef long long ll;

int main()
{
  ios::sync_with_stdio(false);
  cin.tie(0);
  int a,b;
  cin>>a>>b;
  cout<<(a+b)/2<<endl;
  
}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
  int a,b;
  cin>>a>>b;
  cout<<(a+b)/2<<endl;
  return 0;
}

C++: #include<bits/stdc++.h>
#include<stdio.h>
using namespace std;
int main()
{
   long long  a,b;
    while(cin>>a>>b)
    {

       cout<<(a+b)/2<<endl;
    }
    return 0;
}

C++:         #include<iostream>
        using namespace std;
        int main(){
            int a,b;
            cin >> a >> b;
            cout << (a+b)/2 << "\n";
            return 0;
        }

C++: #include <bits/stdc++.h>
using namespace std;

int main() {
    int a,b;
    cin >> a >> b;
    
    cout << (a + b) / 2 << endl;
}

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

int a,b;

int main(){
cin>>a>>b;
cout<<(a+b)/2<<endl;

return 0;
}

C++: 
#include <iostream>
#include <algorithm>
#include <vector>
#include <cstdio>
#include <cmath>
#include <string>
#include <queue>
#include <stack>
#include <sstream>
using namespace std;
int main(){
	int a,b,ans;
	cin>>a>>b;
	ans=(a+b)/2;
	cout<<ans<<endl;
	return 0;
}

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

int main()
{
	int a , b ;
	cin >> a >>b ;
	cout << (a+b)/2 ;
	return 0 ;
}

C++: #include <bits/stdc++.h>
#define int long long
#define double long double
#define INF 1e18
using namespace std;
signed main() {
  int a,b;
  cin>>a>>b;
  cout << (a+b)/2 << endl;  
}

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

int main() {
	int a, b; cin >> a >> b; cout << (a + b) / 2 << endl;
	return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
  int a,b;
  cin >> a >> b;
  cout << (a+b)/2 << endl;
  return (0);
}

C++: #include<iostream>
using namespace std;
int main(){
  int a,b;
  cin>>a>>b;
  cout<<(a+b)/2<<"\n";
  return 0;
}

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

int main() {
  int a, b;
  cin >> a >> b;
  cout << (a + b) / 2 << endl;
  return 0;
}

C++: #include <iostream>
using namespace std;
int main(){
    int a,b;cin>>a>>b;
    cout << (a+b)/2 << endl;
}

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

int main() {
	int a, b; cin >> a >> b;
	cout << (a + b) / 2 << endl;
	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
int main(){
  int a,b;
  cin>>a>>b;
  cout<<(a+b)/2<<endl;
  return(0);
}

C++: #include <bits/stdc++.h>
using namespace std;
using ll = long long;
using VI = vector<int>;
using VL = vector<ll>;
#define FOR(i,a,n) for(int (i)=(a);(i)<(n);(i)++)
#define eFOR(i,a,n) for(int (i)=(a);(i)<=(n);(i)++)
#define rFOR(i,a,n) for(int (i)=(n)-1;(i)>=(a);(i)--)
#define erFOR(i,a,n) for(int (i)=(n);(i)>=(a);(i)--)
#define SORT(i) sort((i).begin(),(i).end())
#define rSORT(i,a) sort((i).begin(),(i).end(),(a))
#define all(i) (i).begin(),(i).end()
constexpr ll INF = 1000000000;
constexpr ll LLINF = 1LL << 60;
constexpr ll mod = 1000000007;
constexpr ll MOD = 998244353;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; }return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; }return 0; }
inline void init() { cin.tie(nullptr); cout.tie(nullptr); cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); }
template<class T>inline istream& operator>>(istream& input, vector<T>& v) { for (auto& elemnt : v)input >> elemnt; return input; }

int main() {
    init();
    
    int a, b;
    cin >> a >> b;
    cout << (a + b) / 2 << "\n";
}

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

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    
    int a, b;
    while(cin >> a >> b)
    {
        int ans = a + b;
        ans = ans / 2;
        cout << ans << "\n";
    }
    return 0 ;
}

C++: #include <iostream>
using namespace std;
int main(){
    int a;
    int b;
    cin >> a;
    cin >> b;
    cout << ( a + b ) / 2 << endl;
    }

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

using namespace std;

int main(){

 long a , b; cin >> a >> b;
 cout << (a + b) / 2 << endl;

}

C++: #include <bits/stdc++.h>
using namespace std;
int main(){
  int a,b;
  cin >>a>>b;
  cout << (a+b)/2<<endl;
}

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

main(){
int a, b; cin >> a >> b; cout << (a+b)/2 << endl;
}

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

using namespace std;

int main()
{
	int i;
	int n;
	int s;
	cin >> i;
	cin >> n;
	s = (i + n)/2;
	cout << s << endl;
	return 0;
}

C++: #include <iostream>
using namespace std;
main() {
int x;
int y;

cin >> x >> y;
cout << (x + y) / 2 << endl;
}

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

int main()
{
	int a , b ;
	cin >> a >>b ;
	cout << (a+b)/2 <<endl;
	return 0 ;
}

C++: #include<iostream>
using namespace std;
int main(){

int a,b;
cin>>a>>b;
cout<<(a+b)/2<<endl;

return 0;
}

C++: #include <iostream>

using namespace std;

int main() {
    int a, b;
    cin >> a >> b;
    cout << (a + b) / 2 << endl;
    return 0;
}

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

int main(){

	int a, b, ans;
	cin >> a >> b;

	ans = (a + b)/2;

	cout << ans << endl;

	return 0;
}

C++: #include <bits/stdc++.h>  // g++ -std=c++14 -o a a.cpp

using namespace std;

typedef pair<int, int> P;
typedef long long ll;

#define rep(i, n) for(int i = 0; i < (n); i++)
#define repto(i, n) for(int i = 0; i <= (n); i++)
#define all(c) (c).begin(), (c).end()
#define uniq(c) c.erase(unique(all(c)), (c).end())
#define _1 first
#define _2 second
#define pb push_back
#define INF 1145141919
#define MOD 1000000007
#define DEBUG(x) cout << #x << ": " << x << endl;

int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};

__attribute__((constructor))
void initial() {
    cin.tie(0);
    ios::sync_with_stdio(false);
}

int main() {
    int A, B;
    cin >> A >> B;
    cout << ((A + B) / 2) << endl;
}

C++: #include <iostream>
using namespace std;
int main(){
int a, b;
cin>>a>>b;
cout<<(a+b)/2<<endl;

return 0;
}

C++: #include<iostream>
int main(){
    int n,m;
    std::cin>>n>>m;
    std::cout<<(n+m)/2<<std::endl;
        return 0;
    
}

C++: #include <bits/stdc++.h>
using namespace std;
int main(){
	int a,b;
	cin >> a >> b;
	cout << (a+b)/2 << endl;
}

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

int main() {
  int a, b;
  cin >> a >> b;
  cout << (a+b)/2 << endl;
  return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;

int main() {
  int a,b;
  cin >> a >> b;
  cout << (a+b)/2 << endl;
  return 0;
}

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

using namespace std;

int main(){
	int a,b;
	scanf("%d %d",&a,&b);
	printf("%d\n",(a+b)/2);
}

C++: #include <iostream>
using namespace std;
int main(){
    int a,b;
    cin >> a >> b;
    cout << (a+b)/2 << endl;
    return 0;
    }

C++: #include <bits/stdc++.h>
using namespace std;

int main() {
    int a, b;
    cin >> a >> b;
    cout << (a + b) / 2 << endl;
}

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

int main() {
	int a,b;
	cin>>a>>b;
	cout<<(a+b)/2<<endl;
	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
int main(void){
    int a, b; cin >> a >> b;
    cout << (a+b)/2 << endl;
    return 0;
}

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

using namespace std;

int main(){
  int a, b;
  cin >> a >> b;
  
  int c =  (a + b) / 2;
  cout << c;

  return 0;
}