#include <iostream>
#include <fstream>
#include <vector>
using namespace std;

ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");


vector <vector<int>>v;
vector <int> w;

int main()
{
    v.push_back(w);
    v.push_back(w);

    v[0].push_back(1);

    cout<<v[0][0];


    return 0;
}