Go: package main

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

func main() {
	var total int
	scanner := bufio.NewScanner(os.Stdin)
	for scanner.Scan() {
		line := scanner.Text()
		strs := strings.Split(line, " ")

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

	fmt.Printf("%v\n", total)
}

C++: #include<cstdio>
#include<iostream>
#include<algorithm>
#include<utility>
#include<vector>
#include<queue>
#include<functional>
#include<map>
#include<set>
#include<cstring>
#include<string>
#include<stack>
#include<math.h>
#include<stdlib.h>
using namespace std;
#define int long long
typedef pair<int, int> pii;
typedef pair<int, pii > piii;
typedef pair<double, double> pdd;
typedef pair<int, char> pic;
typedef priority_queue<pii, vector<pii>, greater<pii> > RPQ;
#define mk make_pair
#define INF (1 << 30)
#define INFL (1ll << 60ll)
#define mod 1000000007

int a, b, c, d;


signed main(){
    cin >> a >> b >> c >> d;
    cout << a + b + c + d << endl;    


    return 0;
}

/*

*/

C++: #include<iostream>
#include<vector>
#include<algorithm>
#include<map>
#include<cstring>
#include<math.h>
#include<bitset>
#include<queue>
#include<set>
#include<iomanip>
#include<math.h>
#include<assert.h>
#include<string>
#include<cstdlib>
#include<cctype>
#include<unordered_map>
#include<sstream>
#include<numeric>
// #include<bits/stdc++.h>
using namespace std;
using ll = long long;
using P = pair<int,int>;
constexpr ll INF = 1LL<<60;
const double INFD = 1e100;
const ll mod = 1000000007;
const double PI = 3.1415926535897932384626433832795028841971;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};
template<class T> inline bool chmin(T& a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
};
template<class T> inline bool chmax(T& a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
};

// intやllをstringに変換
template<typename T> inline string toString(const T &a){
  ostringstream oss;
  oss << a;
  return oss.str();
};
// ----------------------------------------------------------------------------

int main(){
  int sum =0;
  for(int i=0; i<4; i++){
    int x;
    cin >> x;
    sum += x;
  }
  cout << sum << endl;
  return 0;
}

C++: #include <bits/stdc++.h>
#include <assert.h>
using namespace std;
using i64 = long long;

int main()
{
  i64 r, b, w, g;
  cin >> r >> b >> w >> g;
  cout << r + b + w + g << endl;
  return 0;
}

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

int main(){
    int r, b, w, g;
    cin >> r >> b >> w >> g;
    cout << r+b+w+g << endl;
    return 0;
}

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

int main (){
    int R,B,W,G;
    cin >> R >> B >> W >> G;
    cout << R + B + W + G << endl;
}

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

#pragma GCC optimize "O3"
#define rep(i,a,n) for(long long i=a; i<n; i++)
typedef long long ll;
typedef pair<int,int> P;
const ll MOD = (int)1e9+7;
const ll INF = MOD*MOD;
const double EPS = 1e-9;
const ll powll = 1LL<<1;

/*
while(!frag && cin >> a >>b, a|b)
*/

int main(void){
    int a = 0;
    rep(i,0,4){
        int b;
        cin >> b;
        a += b;
    }
    cout << a << "\n";
}

C++: #include<bits/stdc++.h>
#include<vector>
#include<deque>
#include<list>
#define rep(i,n) for(ll i=0;i<n;++i)
#define rrep(i,n) for(int i=n-1;i>=0;--i)
#define yesno(flg) if(flg){cout<<"YES"<<endl;}else{cout<<"NO"<<endl;}
#define MAX_N 1002
#define i197 1000000007

using namespace std;

typedef long long ll;
typedef pair<ll,ll> P1;
typedef pair<int,int> Pi;
typedef pair<double,Pi> Pdi;
typedef pair<ll,int>Pli;
typedef pair<P1,ll> P2;
const ll INF=10000000000000000001;
struct edge{int to,cost;};
struct pos{
	int x,y,cost;
};
int dy[]={0, 0, 1, -1};
int dx[]={1, -1, 0, 0};
struct Road{double cost;int a,b;};


int main() {

	int r,b,w,g;
	cin>>r>>b>>w>>g;
	cout<<r+b+w+g<<endl;

	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define P pair<ll,ll>
#define FOR(I,A,B) for(ll I = ll(A); I < ll(B); ++I)
#define FORR(I,A,B) for(ll I = ll((B)-1); I >= ll(A); --I)
#define TO(x,t,f) ((x)?(t):(f))
#define SORT(x) (sort(x.begin(),x.end())) // 0 2 2 3 4 5 8 9
#define POSL(x,v) (lower_bound(x.begin(),x.end(),v)-x.begin()) //xi>=v  x is sorted
#define POSU(x,v) (upper_bound(x.begin(),x.end(),v)-x.begin()) //xi>v  x is sorted
#define NUM(x,v) (POSU(x,v)-POSL(x,v))  //x is sorted
#define REV(x) (reverse(x.begin(),x.end())) //reverse
ll gcd_(ll a,ll b){if(a%b==0)return b;return gcd_(b,a%b);}
ll lcm_(ll a,ll b){ll c=gcd_(a,b);return ((a/c)*(b/c)*c);}
#define NEXTP(x) next_permutation(x.begin(),x.end())
const ll INF=ll(1e16)+ll(7);
const ll MOD=1000000007LL;
#define out(a) cout<<fixed<<setprecision((a))
//tie(a,b,c) = make_tuple(10,9,87);
#define pop_(a) __builtin_popcount((a))
ll keta(ll a){ll r=0;while(a){a/=10;r++;}return r;}




int main(){

  int a,ans=0;
  FOR(i,0,4){
    cin >> a;
    ans += a;
  }
  cout << ans << endl;
}

C++: #include<iostream>

using namespace std;

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

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

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

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

int main(){
  int a,b,c,d;
  cin >>a>>b >>c >>d;

  cout <<a+b+c+d<<endl;
}

C++: #include<bits/stdc++.h>
using namespace std;
#define MOD 1000000007
#define INF 1000000010
#define EPS 1e-9
#define fst first
#define scd second

#define debug(x) cout<<x<<endl;
#define repi(i,x,n) for(int i=x;i<n;i++)
#define rep(i,n) repi(i,0,n)
#define lp(i,n) repi(i,0,n)
#define repn(i,n) for(int i=n;i>=0;i--)
#define int long long
#define endl "\n"


signed main(){
  cin.tie(0);	
  ios::sync_with_stdio(false);
  int r,b,w,g;
  cin>>r>>b>>w>>g;
  cout<<r+b+w+g<<endl;

  return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vi = vector<int>;
using vi2 = vector<vector<int>>;
using vb = vector<bool>;
using vb2 = vector<vector<bool>>;
using vc = vector<char>;
using vc2 = vector<vector<char>>;
using vs = vector<string>;
using si = set<int>;
using vs2 = vector<vector<string>>;
using pii = pair<int, int>;
using mii = map<int, int>;
const int INF = 1e9;
const ll LINF = 1e18;
const long double PI = acos(-1.0);
#define MP(a,b) make_pair((a),(b))
#define MT(...) make_tuple(__VA_ARGS__)
#define sz(x) (int)(x).size()
 
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define REP(i,x) for(int i=0;i<(int)(x);i++)
#define REPS(i,x) for(int i=1;i<=(int)(x);i++)
#define RREP(i,x) for(int i=((int)(x)-1);i>=0;i--)
#define RREPS(i,x) for(int i=((int)(x));i>0;i--)
 
#define ALL(x) (x).begin(),(x).end()
#define SORT(v) sort(ALL(v));
#define IN(type,a) type a;cin >> a;
#define VIN(type,a,n) vector<type> a(n);cin >> a;
#define YES(n) cout << ((n) ? "YES" : "NO"  ) << endl;
#define Yes(n) cout << ((n) ? "Yes" : "No"  ) << endl;
#define COUT(x) cout << (x) << endl;
#define DCOUT(x,n) cout << fixed << setprecision(n) << (x) << endl;
#define ENDL cout << endl;
#define DB(s,x) cout << (s) << " : " << x << endl;

#define HOGE COUT("HOGE")

template<typename T>inline istream& operator>>(istream&i,vector<T>&v)
{REP(j,sz(v))i>>v[j];return i;}

template<typename T> bool chmax(T& a, const T& b){if(a<b){a=b;return true;}return false;}
template<typename T> bool chmin(T& a, const T& b){if(a>b){a=b;return true;}return false;}
int main() {
    int a,b,c,d;
    cin >> a >> b >> c >> d ;
    COUT(a+b+c+d);
}

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


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

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