kostili

import java.util.*;
import java.io.IOException;
public class instrument {
        public static void main (String[] args) throws IOException
        {
Scanner in = new Scanner(System.in);
            int a = in.nextInt(),b = in.nextInt(),summ=0;
            int[] array= new int[a];
            ArrayList<Integer> array2 = new ArrayList<Integer>();
            ArrayList<Integer> array3 = new ArrayList<Integer>();
            for (int i = 0; i <a; i++) {
                int n = in.nextInt();
                array[i]=n;
            }
            int[] array4 = Arrays.copyOf(array,a);
            Arrays.sort(array);
            for (int i = 0;summ+array[i]<=b;i++) {
               summ+=array[i];
               array2.add(array[i]);
                if(i==a-1)break;
            }
            for (int i = 0; i <array2.size(); i++) {
                for (int j = 0; j <array4.length; j++) {
                    if(array2.get(i)==array4[j])
                    {array3.add(j);
                    array4[j]=-1;
                    break;
                    }
                }
            }
            System.out.println(array2.size());
            for(int ch : array3) System.out.print(ch + 1 + " ");
        }
}