using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        int n = int.Parse(Console.ReadLine());

        int[] v = new int[n];

        int[] c = new int[n];

        int[] l = new int[n];

        int[] r = new int[n];

        int[,] matrix = new int[n, n];

        int[] included = new int[n];

        int cTotal = 0;

​

        for(int i = 0; i < n; i++)

        {

            string[] input = Console.ReadLine().Split(' ');

            v[i] = int.Parse(input[0]);

            c[i] = int.Parse(input[1]);

            l[i] = int.Parse(input[2]);

            r[i] = int.Parse(input[3]);

            cTotal += c[i];

        }

        int cBefore = 0;

        int cAfter = 0;

        while(true)

        {

            for(int i = 0; i < n; i++)

            {

                if(l[i] > cBefore || r[i] > cAfter)

                {

                    included[i] = -1;

                }

            }

        }

        //int max = GetMaxValue(0, n, v, c, l, r, included, ref matrix);

    }

    /*public static int GetMaxValue(int current, int n, int[] v, int[] c, int[] l, int[] r, int[] included, ref int[,] matrix)

    {

        int before = 0;

        int after = 0;

        int[] newIncluded = included;

        for(int i = 0; i < n; i++)

        {

            if(included[i] != -1 && i < current)

            {

                before += c[i];

            }

            else if(included[i] != -1 && i > current)

            {

                after += c[i];

            }

        }

        if(before < l[current] || after < r[current])

        {

            newIncluded[current] = -1;

        }

    }*/

}