#include<bits/stdc++.h>

using namespace std;

struct Way
{
    int to, w;
    Way(int _to, int _w)
    {
        to = _to;
        w = _w;
    }
};

operator<(const Way left, const Way right)
{
    return left.w < right.w;
}

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    set<Way> ways;
}