Problem: You have a knapsack with the capacity of W. There are also n items, the i-th one has weight w_i. 

You want to put some of these items into the knapsack in such a way that their total weight C is at least half of its size, but (obviously) does not exceed it. Formally, C should satisfy: ⌈ W/2⌉ ≤ C ≤ W. 

Output the list of items you will put into the knapsack or determine that fulfilling the conditions is impossible. 

If there are several possible lists of items satisfying the conditions, you can output any. Note that you don't have to maximize the sum of weights of items in the knapsack.

Input

Each test contains multiple test cases. The first line contains the number of test cases t (1 ≤ t ≤ 10^4). Description of the test cases follows.

The first line of each test case contains integers n and W (1 ≤ n ≤ 200 000, 1≤ W ≤ 10^{18}). 

The second line of each test case contains n integers w_1, w_2, ..., w_n (1 ≤ w_i ≤ 10^9) — weights of the items.

The sum of n over all test cases does not exceed 200 000.

Output

For each test case, if there is no solution, print a single integer -1. 

If there exists a solution consisting of m items, print m in the first line of the output and m integers j_1, j_2, ..., j_m (1 ≤ j_i ≤ n, all j_i are distinct) in the second line of the output — indices of the items you would like to pack into the knapsack.

If there are several possible lists of items satisfying the conditions, you can output any. Note that you don't have to maximize the sum of weights items in the knapsack.

Example

Input


3
1 3
3
6 2
19 8 19 69 9 4
7 12
1 1 1 17 1 1 1


Output


1
1
-1
6
1 2 3 5 6 7

Note

In the first test case, you can take the item of weight 3 and fill the knapsack just right.

In the second test case, all the items are larger than the knapsack's capacity. Therefore, the answer is -1.

In the third test case, you fill the knapsack exactly in half.

Solution (in JAVA):

Solution:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.stream.IntStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;

import java.util.Arrays;
import java.util.List;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.math.BigInteger;
import java.util.Map;
import java.util.Map.Entry;
import java.util.PriorityQueue;
import java.util.Queue;
import java.util.Scanner;
import java.util.StringTokenizer;
import java.util.TreeMap;
import java.util.TreeSet;

public class  Dragons{
	 
    static class Pair {
        int a;
        int b;
        public Pair(int a, int b){
            this.a=a;
            this.b=b;
        }
    }
	static ArrayList<ArrayList<Integer>> adjList;
	static boolean[] visit;
	static int max=0;
	static ArrayList<ArrayList<Pair>> nodes;
	
	static ArrayList<Long> arr;
    public static HashSet<Long> visited= new HashSet<>();
    public static long n;
    public static long m;
    public static boolean vis[][];
    public static int[] dist = new int[(int) 1e4+1];
    
	public static void main(String[] args) throws IOException {
	Scanner sc=new Scanner(System.in);
	int t=sc.nextInt();
	
	while(t>0) {
		ArrayList<Long> al=new ArrayList<Long>();
		ArrayList<Long> bl=new ArrayList<Long>();
		long n=sc.nextLong();
		long w=sc.nextLong();
		HashMap<Long,ArrayList<Long>> hm=new HashMap<Long,ArrayList<Long>>();
		long m=0;
		for(int i=0;i<n;i++) {
			
			long p=sc.nextLong();
			al.add(p);
		}
		boolean flag=false;
		long sum=0;
		for(int i=0;i<n;i++) {
			if(al.get(i)>=(w+1)/2 && al.get(i)<=w) {
			
				bl.clear();
				flag=true;
				bl.add((long) i);
				break;
			}else if(al.get(i)<(w+1)/2){
				bl.add((long) i);
			sum+=al.get(i);
			if(sum>=(w+1)/2) {
				flag=true;
				break;
			}
			}
		}
		if(flag) {
			System.out.println(bl.size());
			for(int i=0;i<bl.size();i++) {
				System.out.print(bl.get(i)+1+" ");
			}
		}else {
			System.out.print(-1);
		}
		System.out.println();
		t--;
	}
	}
	public static long bs(ArrayList<Long> arr, long x , int l , long r) {
		
		while(l<=r) {
		int m = (int) ((l+r)/2);
		if(arr.get(m)>=x) {
			r = m-1;
		}else {
			l = m+1;
		}
		}
		return l;
		
	}
	public static long gs(ArrayList<Long> arr, long x , long l , long r) {
		
		while(l<=r) {
		int m = (int) ((l+r)/2);
		if(arr.get(m)<=x) {
			r = m+1;
		}else {
			l = m-1;
		}
		}
		return r;
		
	}
	 public static HashMap<Integer, Integer>
	    insertPF(HashMap<Integer, Integer> primeFact,
	             long fact)
	    {
	        if (primeFact.containsKey(fact)) {
	 
	            int freq;
	            freq = primeFact.get(fact);
	            primeFact.replace((int) fact, ++freq);
	        }
	        else {
	            primeFact.put((int) fact, 1);
	        }
	        return primeFact;
	    }
	 
	    // A utility function to find all
	    // prime factors of a given number N
	    public static HashMap<Integer, Integer>
	    primeFactors(long n)
	    {
	 
	        HashMap<Integer, Integer> primeFact
	            = new HashMap<>();
	 
	        // Insert the number of 2s
	        // that divide n
	        while (n % 2 == 0) {
	            primeFact = insertPF(primeFact, 2);
	            n /= 2;
	        }
	 
	        // n must be odd at this point.
	        // So we can skip one element
	        for (int i = 3; i <= Math.sqrt(n);
	             i += 2) {
	 
	            // While i divides n, insert i
	            // and divide n
	            while (n % i == 0) {
	                primeFact = insertPF(primeFact, i);
	                n /= i;
	            }
	        }
	 
	        // This condition is to handle
	        // the case when n is a prime
	        // number greater than 2
	        if (n > 2)
	            primeFact = insertPF(primeFact, n);
	 
	        return primeFact;
	    }
	 
	    // Function to check if a number
	    // is a perfect cube
	    public static boolean perfectCube(long n)
	    {
	 
	        HashMap<Integer, Integer> primeFact;
	        primeFact = primeFactors(n);
	 
	        // Using values() for iteration
	        // over keys
	        for (int freq : primeFact.values()) {
	            if (freq % 3 != 0)
	                return false;
	        }
	        return true;
	    }
	static String fixthisstring(String p,int n) {
		StringBuilder sb=new StringBuilder(p);
		if(p.length()>2) {
		for(int i=0;i<sb.length();i++) {
			
			if(i==0&& sb.charAt(i)=='?') {
				if(sb.charAt(i+1)=='0') {
					sb.setCharAt(i,'1');
				}else if(sb.charAt(i+1)=='1'){
					sb.setCharAt(i,'0');
				}else {
					if(sb.charAt(i+2)=='0') {
						sb.setCharAt(i,'0');
					}else if(sb.charAt(i+2)=='1') {
						sb.setCharAt(i,'1');
					}else {
						sb.setCharAt(i,'1');
					}
				}
			}else if(i==sb.length()-1 && sb.charAt(i)=='?') {
				if(sb.charAt(i-1)=='0') {
					sb.setCharAt(i,'1');
				}else {
					sb.setCharAt(i,'0');
				}
			}else if(sb.charAt(i)=='?'){
				if(sb.charAt(i+1)=='0') {
					
						sb.setCharAt(i,'1');
					
				}else if(sb.charAt(i+1)=='1'){
					sb.setCharAt(i,'0');
				}else if(sb.charAt(i+1)=='?') {
				
					if(sb.charAt(i-1)=='0') {
						sb.setCharAt(i,'1');
					}else {
						sb.setCharAt(i,'0');
					}
				}
			}
		}
		}else {
			if(p.contains("?") && p.length()==1) {
				return "0";
			}else if(p.contains("?")){
				return "01";
			}
		}
		return sb.toString();
		
	}
	 static void addEdge(ArrayList<ArrayList<Integer> > adj,
             int u, int v)
{
adj.get(u).add(v);
adj.get(v).add(u);
}

	static long binomialCoeff(long n, long l) {
        long res = 1;
        
        if (l > n - l) l = n - l;
        
        for (var i = 0; i < l; ++i) {
            res *= 1L*(n - i);
            res /= 1L*(i + 1);
        }
        
        return res;
    }
	static long nCr(long n, long r)
	{
	    return fact(n) / (fact(r) *
	                  fact(n - r));
	}
	static long fact(long n)
	{
	    long res = 1;
	    for (int i = 2; i <= n; i++)
	        res = res * i;
	    return res;
	}
	 

	static void  dfs(int m) {
		
		
		
		visit[m]=true;
		for(int i=0;i<adjList.get(m).size();i++) {
			int v=adjList.get(m).get(i);
			
			if(!visit[v]) {
				
				max++;
			 dfs(v);
			}
		}
		
		
	}
	static boolean dividetwothree(long n) {
		while(n!=1) {
			if(n%2==0) {
				n=n/2;
			}else if(n%3==0){
				n=n/3;
			}else {
				return false;
			}
			
			
		}
		return true;
	}
	static boolean isLuckyNumber(int n){
		while(n>0) {
			int y=n%10;
			n=n/10;
			if(y!=4 && y!=7) {
				return false;
			}
		}
		return true;
	}
	static boolean isInteger(double N)
	{
	 
	    // Convert float value
	    // of N to integer
	    long X = (long)N;
	    double temp2 = N - X;
	 
	    // If N is not equivalent
	    // to any integer
	    if (temp2 > 0)
	    {
	        return false;
	    }
	    return true;
	}
	static long isrecursive(long p) {
		if(p==0) {
			return 0;
		}else if(p%2==0) {
			return isrecursive(p/2);
		}else {
			return isrecursive(p/2)+1;
		}
		
	}
	static boolean islucky(long  r) {
		String temp = Long.toString(r);
		long[] newGuess = new long[temp.length()];
		long tu=0;
		boolean flag=false;
		
		for (int i = 0; i < temp.length(); i++)
		{
		    newGuess[i] = temp.charAt(i) - '0';
		    if(newGuess[i]==4 || newGuess[i]==7) {
		    	continue;
		    }else {
		    	flag=true;
		    	break;
		    }
		}
		if(flag) {
			return false;
		}
		return  true;
	}
	static int distance(long l,long m) {
		return (int) (Math.pow(l,2)+Math.pow(m,2));
	}
	static int findSmallest(int N)
	{
	  
	    // Base case
	    if (N == 0)
	        return 2;
	    if (N == 1)
	        return 1;
	  
	    int prime = N, counter = 0;
	    boolean found = false;
	  
	    // Loop continuously until isPrime returns
	    // true for a number greater than n
	    while (!found) {
	        if (isPrime(prime))
	            found = true;
	        else {
	  
	            // If the number is not a prime, then
	            // increment the number by 1 and the
	            // counter which stores the number
	            // to be added
	            prime++;
	            counter++;
	        }
	    }
	  
	    return counter;
	}
	static boolean isPrime(int n)
	{
	    // Base cases
	    if (n <= 1)
	        return false;
	    if (n <= 3)
	        return true;
	  
	    // This is checked so that we can skip
	    // middle five numbers in below loop
	    if (n % 2 == 0 || n % 3 == 0)
	        return false;
	  
	    // For all the remaining numbers, check if
	    // any number is a factor if the number
	    // or not
	    for (int i = 5; i * i <= n; i = i + 6)
	        if (n % i == 0 || n % (i + 2) == 0)
	            return false;
	  
	    // If none of the above numbers are the
	    // factors for the number, then the
	    // given number is prime
	    return true;
	}
	
	
		static int mod(int a, int m)
		{
		    return (a%m + m) % m;
		}
		
	static long getSum(long y)
    {
       long sum = 0;
 
        while (y != 0) {
            sum = sum + y % 10;
            y = y / 10;
        }
 
        return sum;
    }
	static boolean detect(int arr[],int x) {
		long sum=0;
		for(int i=0;i<arr.length;i++) {
			sum+=arr[i];
			if(sum==x) {
				return true;
			}
			
		}
		return false;
	}
	
    static class Node {
        String s;
        int val;
 
        public Node(String a, int v) {
            val = v;
            s = a;
        }
    }
	  
	 public static HashMap<Integer,Long> sortByValue(HashMap<Integer,Long> hm)
	    {
	        // Create a list from elements of HashMap
	        List<Map.Entry<Integer,Long> > list =
	               new LinkedList<Map.Entry<Integer,Long> >(hm.entrySet());
	 
	        // Sort the list
	        Collections.sort(list, new Comparator<Map.Entry<Integer,Long> >() {
				@Override
				public int compare(Entry<Integer,Long> o1, Entry<Integer,Long> o2) {
					return (int)-(o1.getValue()-o2.getValue());
				}
	        });
	         
	        // put data from sorted list to hashmap
	        HashMap<Integer,Long> temp = new LinkedHashMap<Integer,Long>();
	        for (Map.Entry<Integer,Long> aa : list) {
	            temp.put(aa.getKey(), aa.getValue());
	        }
	        return temp;
	    }
	
	 static long lcm(long a, long b)
	    {
	        return (a / gcd(a, b)) * b;
	    }
static class FastScanner {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st=new StringTokenizer("");
		String next() {
			while (!st.hasMoreTokens())
				try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			return st.nextToken();
		}
		
		int nextInt() {
			return Integer.parseInt(next());
		}
		int[] readArray(int n) {
			int[] a=new int[n];
			for (int i=0; i<n; i++) a[i]=nextInt();
			return a;
		}
		long nextLong() {
			return Long.parseLong(next());
		}
	}
	
	
//static void reduceFraction(int x, int y) 
//{ 
//    int d; 
//    d = gcd(x, y); 
//  
//    x = x / d; 
//    y = y / d; 
//  if(x>0 && y<0) {
//	  x=-x;
//	  y=-y;
//  }
//    System.out.println(y); 
//} 
	
	static long gcd(long a, long b) {
		return a%b == 0 ? b : gcd(b,a%b);
	}
	 static int getSum(int n)
	    {
	        int sum = 0;
	 
	        while (n != 0) {
	            sum = sum + n % 10;
	            n = n / 10;
	        }
	 
	        return sum;
	    }
	
	static boolean[] sieve(int n) {
		
		
		boolean isPrime[] = new boolean[n+1];
		for(int i = 2; i <= n; i++) {
			if(isPrime[i]) continue;
			for(int j = 2*i; j <= n; j+=i) {
				isPrime[j] = true;
			}
		
		} 
		return isPrime;
		
	}
	public static long SubString(String str, int n,long count)
	{
	for (int i = 0; i < n; i++) {
		for (int j = i+1; j <= n; j++) {
			
				String y=fixthisstring(str.substring(i, j),str.substring(i, j).length());
				
				if(y.length()==1) {
					count++;
				}else if(y.contains("00")||y.contains("11") ) {
					continue;
				}else {
					count++;
				}
		}
	}
	return count;
	}
}