Go: package main

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

var scanner = bufio.NewScanner(os.Stdin)

const INF = 0x7FFFFFFF

func main() {
	for scanner.Scan() {
		n, _ := strconv.Atoi(scanner.Text())
		if n == 0 {
			break
		}
		matrix := make([][]int, 10)
		for i := range matrix {
			matrix[i] = make([]int, 10)
		}
		for i := range matrix {
			for j := range matrix[i] {
				if i == j {
					matrix[i][j] = 0
				} else {
					matrix[i][j] = INF
				}
			}
		}
		num := 0
		for i := 0; i < n; i++ {
			scanner.Scan()
			buf := strings.Split(scanner.Text(), " ")
			from, _ := strconv.Atoi(buf[0])
			to, _ := strconv.Atoi(buf[1])
			cost, _ := strconv.Atoi(buf[2])
			if num < from {
				num = from
			}
			if num < to {
				num = to
			}
			matrix[from][to] = cost
			matrix[to][from] = cost
		}
		num++
		for i := 0; i < num; i++ {
			for j := 0; j < num; j++ {
				for k := 0; k < num; k++ {
					if matrix[j][i]+matrix[i][k] < matrix[j][k] {
						matrix[j][k] = matrix[j][i]+matrix[i][k]
					}
				}
			}
		}
		ans, sum := 0, INF
		for i := 0; i < num; i++ {
			now := 0
			for j := 0; j < num; j++ {
				now += matrix[i][j]
			}
			if sum > now {
				sum = now
				ans = i
			}
		}
		fmt.Println(ans, sum)
	}
}

C++: #include<iostream>
#include<iomanip>
#include<algorithm>
#include<bitset>
#include<cassert>
#include<cctype>
#include<cmath>
#include<cstdio>
#include<cstring>
#include<functional>
#include<limits>
#include<list>
#include<map>
#include<numeric>
#include<set>
#include<stack>
#include<string>
#include<sstream>
#include<queue>
#include<vector>
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pii;

#define MOD 1000000007
#define INF 0x3f3f3f3f
#define INFL 0x3f3f3f3f3f3f3f3fLL

//dx[i],dy[i]???i?????????????§???????????????¢???
//  3
// 2 0
//  1

//??\?????¨?????°
int X, Y;

//xy??§?¨???§?????±???????????¢?´¢
void dfs(int x, int y) {

	/* ?????? */

	//?§????4?????????????????????
	int dx[4] = { 1,0,-1,0 };
	int dy[4] = { 0,1,0,-1 };
	//?§????4???????????¢?´¢
	for (int i = 0; i < 4; i++) {
		int nx = x + dx[i], ny = y + dy[i];
		if (0 <= nx&&nx < X && 0 <= ny&&ny < Y) {
			dfs(nx, ny);
		}
	}
}

//xy??§?¨???§??????????????¢?´¢
//???????????¢
int bfs(int sx, int sy, int gx, int gy) {
	const int MAX = 1; //????????´???

	queue<pii> Q;
	Q.push(pii(sx, sy));

	//???????????¢
	int d[MAX][MAX];
	memset(d, 0x3f, sizeof(d));
	d[sx][sy] = 0;

	//?§????4?????????????????????
	int dx[4] = { 1,0,-1,0 };
	int dy[4] = { 0,1,0,-1 };
	for (pii u; !Q.empty();) {
		u = Q.front(); Q.pop();
		if (u == pii(gx, gy))break; //??´??????????????¢?´¢????????????
									//?§????4???????????¢?´¢
		for (int i = 0; i < 4; i++) {
			int nx = u.first + dx[i], ny = u.second + dy[i];
			if (0 <= nx&&nx < X && 0 <= ny&&ny < Y) {
				if (d[nx][ny] != INF)continue; //??¢?´¢???????£???°???
				d[nx][ny] = d[u.first][u.second] + 1;
				Q.push(pii(nx, ny));
			}
		}
	}

	return d[gx][gy];
}

//??¶?´?????????£???????????? int:INF ll:INFL
#define INFG INFL
using Weight = ll;//int;
struct Edge {
	int s; //source
	int d; //destination
	Weight w; //weight
	Edge(int s = 0, int d = 0, Weight w = INFG) : s(s), d(d), w(w) {};
};
using Edges = vector<Edge>;
//???????????\: g[u].push_back(Edge(u, v, c));
//????????¨???????????????????????°??????????????\?????????????????????
using Graph = vector<Edges>;
using Array = vector<Weight>;
using Matrix = vector<Array>;

//?????¢?´¢, ??¢?´¢???, ??¢?´¢???
enum { WHITE, GRAY, BLACK };

//???????§?????????????(???????????????) Single Source Shortest Path
//Dijkstra O( |E|log|V| )
//dist: ?§????????????????????????§??????????????¢
//prev: ???????????¨????????????
void dijkstra(Graph g, int s, vector<Weight> &dist, vector<int> &prev) {
	typedef tuple<Weight, int, int> State; //?§?????????????????°?????????? ??? ???
	priority_queue<State, vector<State>, greater<State> >PQ;
	int n = g.size();
	vector<int> color(n, WHITE);
	dist.assign(n, INFG); //distance
	prev.assign(n, -1);
	dist[s] = 0; PQ.push(State(0, s, -1)); color[s] = GRAY; //?§????
	while (!PQ.empty()) {
		Weight d; int v; int u;
		tie(d, v, u) = PQ.top(); PQ.pop(); //dist???????°??????¨??????????´????????????????
		if (dist[v] < d) continue; //?????§???????????§???????????°??????
		color[v] = BLACK;
		prev[v] = u;
		for (auto e : g[v]) { //??£??\????????????????????¨????????????		
			if (color[e.d] == BLACK)continue; //??¢?´¢????????????
			if (dist[e.d] > dist[v] + e.w) {
				dist[e.d] = dist[v] + e.w;
				PQ.push(State(dist[e.d], e.d, v));
				color[e.d] = GRAY;
			}
		}
	}
}

//???????§?????????????(???????????????) Single Source Shortest Path
//Bellman Ford O(|V||E|)
//dist: ?§????????????????????????§??????????????¢
//prev: ???????????¨????????????
//?????????: ???????????????:true ??????:false
bool bellmanFord(Graph g, int s, vector<Weight> &dist, vector<int> &prev) {
	return false;
}

//?§?????????????????????§??????????????????
//???????????????????????°?????????????§??????????????????§?????????????????¢????????????
vector<int> getPath(int s, int g, vector<int> prev) {
	vector<int> path;
	path.push_back(g);
	for (int i = g; i != s; ) path.push_back(i = prev[i]);
	reverse(path.begin(), path.end());
	return path;
}

//??¨????????????????????? All Pairs Shortest Path
//Warshall Floyd O(|V|^3)
//?????????: ???????????????:true ??????:false
bool warshallFloyd(Graph g, Matrix &dist) {
	bool negative_cycle = false;
	int n = g.size();
	dist.assign(n, Array(n, INFG));
	for (int i = 0; i < n; i++) dist[i][i] = 0;
	for (int i = 0; i < n; i++)
		for (auto e : g[i])
			dist[e.s][e.d] = min(dist[e.s][e.d], e.w);
	for (int i = 0; i < n; i++)
		for (int j = 0; j < n; j++)
			for (int k = 0; k < n; k++)
				if (dist[j][i] != INFG&&dist[i][k] != INFG)
					dist[j][k] = min(dist[j][k], dist[j][i] + dist[i][k]);
	for (int i = 0; i < n; i++)
		if (dist[i][i] != 0)
			negative_cycle = true;
	return negative_cycle;
}

//???????????????
void printPath(vector<int> path) {
	cout << "Path: ";
	for (auto p : path) cout << p << " ";
	cout << endl;
}

int main() {
	for (int E; cin >> E&&E;) {
		Edges es;
		int M = -1;
		for (int i = 0; i < E; i++) {
			int a, b, c; cin >> a >> b >> c;
			es.push_back(Edge(a, b, c));
			es.push_back(Edge(b, a, c));
			M = max(M, max(a, b));
		}

		Graph g(M + 1);
		for (auto e : es) {
			g[e.s].push_back(e);
		}

		Matrix dist;
		warshallFloyd(g, dist);
		int ans1 = -1;
		ll ans2 = INFL;
		for (int i = 0; i <= M; i++) {
			ll tmp = 0;
			for (int j = 0; j <= M; j++) {
				tmp += dist[i][j];
			}
			if (ans2 > tmp) {
				ans1 = i;
				ans2 = tmp;
			}
		}
		cout << ans1 << " " << ans2 << endl;
	}
	return 0;
}