/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
 
	private static final Scanner scanner = new Scanner(System.in);
 
	public static void main (String[] args) throws java.lang.Exception
	{
		String [] nm = scanner.nextLine().split(" ");
 
		int n = Integer.parseInt(nm[0]);
		int p = Integer.parseInt(nm[1]);
		int j = Integer.parseInt(nm[2]);
		String[] arrStr = scanner.nextLine().split(" ");
		int[] arr = new int[arrStr.length];
		String resp = "SI"; // hasta que se demuestre lo contrario
		int chancesJparaAyudar = 2;
 
		//esta vez no usé tiempo en dar formato  a los datos de entrada.
 
		for (int i = 0; i < arr.length; i++){
			arr[i] = Integer.parseInt(arrStr[i]);
		}
 
		//primero ordenaré el arreglo de enemigos , de menor a mayor.
 
		Arrays.sort(arr);
 
		/*
		for (int i = 0; i < arr.length; i++){
			System.out.println(arr[i]);
		}
		*/
 
		for (int i = 0; i < arr.length; i++){
			if (p > arr[i]){
				p = p + arr[i];
			}else if( chancesJparaAyudar > 0 && (p + j)*2 > arr[i] ){
				p = p + arr[i];
				chancesJparaAyudar = chancesJparaAyudar - 1;
			}else{
				resp = "NO";
			}
		}
 
		// O(n)
 
		System.out.println("Respuesta: "+ resp);
 
	}
}

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