#include <bits/stdc++.h>
using namespace std;
 
/*
           389
      0 --------- 1
      |           |
      |           |
  405 |           | 818
      |           |
      |           |
      2 --------- 3
           765
 
*/
 
 
const int N = 4;
vector<pair<int, int> > adj[N];
 
 
int main(){
    // The following two lines are for a faster io with cin and cout
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
 
 
	// build the graph
	adj[0].push_back(make_pair(1, 389));
	adj[0].push_back(make_pair(2, 405));
 
	adj[1].push_back(make_pair(0, 389));
	adj[1].push_back(make_pair(3, 818));
 
	adj[2].push_back(make_pair(0, 405));
	adj[2].push_back(make_pair(3, 765));
 
	adj[3].push_back(make_pair(1, 818));
	adj[3].push_back(make_pair(2, 765));
 
 
	// print the graph
	int v, w;
 
	for (int u=0; u<N; u++) {
	    cout << "Node u=" << u << " has the following neighbors:\n";
 
	    for (auto it=adj[u].begin(); it!=adj[u].end(); it++) {
	        v = it->first;
	        w = it->second;
	        cout << "\tNode v=" << v << " with edge weight w=" << w << "\n";
	    }
 
	    cout << "\n";
	}
 
 
	return 0;
}

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