Problem: Mahmoud and Ehab are on the third stage of their adventures now. As you know, Dr. Evil likes sets. This time he won't show them any set from his large collection, but will ask them to create a new set to replenish his beautiful collection of sets.

Dr. Evil has his favorite evil integer x. He asks Mahmoud and Ehab to find a set of n distinct non-negative integers such the bitwise-xor sum of the integers in it is exactly x. Dr. Evil doesn't like big numbers, so any number in the set shouldn't be greater than 106.

Input

The only line contains two integers n and x (1 ≤ n ≤ 105, 0 ≤ x ≤ 105) — the number of elements in the set and the desired bitwise-xor, respectively.

Output

If there is no such set, print "NO" (without quotes).

Otherwise, on the first line print "YES" (without quotes) and on the second line print n distinct integers, denoting the elements in the set is any order. If there are multiple solutions you can print any of them.

Examples

Input

5 5


Output

YES
1 2 4 5 7

Input

3 6


Output

YES
1 2 5

Note

You can read more about the bitwise-xor operation here: <https://en.wikipedia.org/wiki/Bitwise_operation#XOR>

For the first sample <image>.

For the second sample <image>.

Solution (in JAVA):

Solution:
import java.math.*;
import java.io.*;
import java.util.*;
	
	public class CODE1
	{
		private InputStream is;
		private PrintWriter w;
		int time = 0, DP[], start[], end[], dist[], black[], MOD = (int) (1e9 + 7),
				arr[], weight[][], x[], y[], parent[];
		int MAX = 1000000, N, K;
		long red[];
		ArrayList<Integer>[] amp;
		ArrayList<Pair>[][] pmp;
		static ArrayList<Integer> adj[];
		static boolean visited[];
		boolean b[], boo[][];
		Pair prr[];
		HashMap<Pair, Integer> hm = new HashMap();
		long Dp[][][][] = new long[110][110][12][12];
		static int c1=0,c2=0;
		void soln()
		{
			is = System.in;
			w = new PrintWriter(System.out);
			//long s = System.currentTimeMillis();
			solve();
			// out.close();
			w.flush();
			// tr(System.currentTimeMillis() - s + "ms");
		}
	
		public static void main(String[] args) throws Exception 
		{
			new Thread(null, new Runnable() 
			{
				public void run() 
				{
					try
					{
						//new CODE1;
					} catch (Exception e)
					{
						System.out.println(e);
					}
				}
			}, "1", 1 << 26).start();
			new CODE1().soln();
		}
	
		int ans = 0, cost = 0, D[][];
		char ch[], ch1[];
		int hash = 29;
		TreeSet<Cell> ts;
		int prime[] = new int[100000];
		
		/*author:Mihir Gajera-DAIICT*/
		
		void solve()
		{
		int n=ni();
		int x=ni();
		
		if(n==1)
		{
			w.println("YES");
			w.println(x);
			return;
		}
		
		if(n==2 && x==0)
		{
			w.println("NO");
			return;
		}
		if(n==2)
		{
			w.println("YES");
			w.println("0 "+ x);
			return;
		}
		long xor=0;
		w.println("YES");
		for(int i=1;i<=n-3;i++)
		{
			xor^=i;
			w.print(i+" ");
		}
		int ts=(int)Math.pow(2, 17);
		int te=(int)Math.pow(2, 18);
		if(xor==x)
		{
			w.print(ts+" "+te+" "+(ts+te));
		}
		else
		{
			w.print("0 "+ts+" "+(xor^x^ts));
		}
		
		
		
		}
		void dfs(int i,int color)
		{
			visited[i]=true;
			if(color==0)
				c1++;
			else
				c2++;
			for(int j:adj[i])
			{
				if(!visited[j])
				{
					dfs(j,color^1);
				}
			}
		}
		boolean isCons(char ch){
			if(ch!='a' && ch!='e' && ch!='i' && ch!='o' && ch!='u' && ch!=' ') return true;
			return false; 
		}
		int dp[][] = new int[1000][1000];
		
		void seive(int x){
			b = new boolean[x+1];
			for(int i = 2;i*i<=x;i++){
				if(!b[i]){
					for(int j = 2*i;j<=x;j+=i) b[j] = true;
				}
			}
		}
		long[][] matMul(long a[][] , long b[][], int n)
		{
			long res[][] = new long[n][n];
			for(int i = 0;i<n;i++){
				for(int j = 0;j<n;j++){
					long sum = 0;
					for(int k = 0;k<n;k++){
						sum += (a[i][k]*1l*b[k][j]);
						sum %= MOD;
					}
					res[i][j] = sum;
				}
			}
			return res;
		}
		int min(int a, int b)
		{
			return (a<b)?a:b;
		}
		private class Cell implements Comparable<Cell>
		{
			int u, v, s;
			public Cell(int u, int v, int s) 
			{
				this.u = u;
				this.v = v;
				this.s = s;
			}
			public int hashCode() 
			{
				return Objects.hash();
			}
			public int compareTo(Cell other) 
			{
				return (Long.compare(s, other.s) != 0 ? (Long.compare(s, other.s)):(Long.compare(v, other.v)!=0?Long.compare(v, other.v):Long.compare(u, other.u)))
						&((Long.compare(s, other.s) != 0 ? (Long.compare(s, other.s)):(Long.compare(u, other.v)!=0?Long.compare(u, other.v):Long.compare(v, other.u))));
			}
			public String toString()
			{
				return this.u + " " + this.v;
			}
		}
	
		class Pair implements Comparable<Pair>
		{
			int u, v, i;
	
			Pair(int u, int v) 
			{
				this.u = u;
				this.v = v;
			}
	
			Pair() 
			{
	
			}
	
			Pair(int u, int v, int i) 
			{
				this.u = u;
				this.v = v;
				this.i = i;
			}
	
			public int hashCode()
			{
				return Objects.hash();
			}
	
			public boolean equals(Object o)
			{
				Pair other = (Pair) o;
				return ((u == other.u && v == other.v) | ((u == other.v && v == other.u)));
			}
	
			public int compareTo(Pair other)
			{
				// return Integer.compare(val, other.val);
				return Long.compare(u, other.u) != 0 ? (Long.compare(u, other.u)): (Long.compare(v, other.v));
						//&(Long.compare(u, other.v) != 0 ? (Long.compare(u, other.v)): (Long.compare(v, other.u))));
			}
	
			public String toString()
			{
				return this.u + " " + this.v;
			}
		}
	
		int max(int a, int b) 
		{
			if (a > b)
				return a;
			return b;
		}
	
		public static class FenwickTree 
		{
	
			int[] array; // 1-indexed array, In this array We save cumulative
							// information to perform efficient range queries and
							// updates
	
			public FenwickTree(int size) 
			{
				array = new int[size + 1];
			}
	
			public int rsq(int ind)
			{
				assert ind > 0;
				int sum = 0;
				while (ind > 0)
				{
					sum += array[ind];
					// Extracting the portion up to the first significant one of the
					// binary representation of 'ind' and decrementing ind by that
					// number
					ind -= ind & (-ind);
				}
				return sum;
			}
	
			public int rsq(int a, int b) 
			{
				assert b >= a && a > 0 && b > 0;
				return rsq(b) - rsq(a - 1);
			}
	
			public void update(int ind, int value)
			{
				assert ind > 0;
				while (ind < array.length) 
				{
					array[ind] += value;
					// Extracting the portion up to the first significant one of the
					// binary representation of 'ind' and incrementing ind by that
					// number
					ind += ind & (-ind);
				}
			}
	
			public int size() 
			{
				return array.length - 1;
			}
		}
	
		void buildGraph(int n) 
		{
			for (int i = 0; i < n; i++) 
			{
				int x1 = ni() - 1, y1 = ni() - 1, z = ni();
				ts.add(new Cell(x1,y1,z));
				hm.put(new Pair(x1,y1), z);
				ans += z;
			}
		}
	
		long modInverse(long a, long mOD2) 
		{
			return power(a, mOD2 - 2, mOD2);
		}
	
		long power(long x, long y, long m) 
		{
			if (y == 0)
				return 1;
			long p = power(x, y / 2, m) % m;
			p = (p * p) % m;
	
			return (y % 2 == 0) ? p : (x * p) % m;
		}
	
		public long gcd(long a, long b) 
		{
			if (b == 0)
				return a;
			return gcd(b, a % b);
		}
	
		static class ST1 
		{
			int arr[], st[], size;
	
			
			ST1(int a[]) 
			{
				arr = a.clone();
				size = 10 * arr.length;
				st = new int[size];
				build(0, arr.length - 1, 1);
			}
	
			void build(int ss, int se, int si) 
			{
				if (ss == se)
				{
					st[si] = arr[ss];
					return;
				}
				int mid = (ss + se) / 2;
				int val = 2 * si;
				build(ss, mid, val);
				build(mid + 1, se, val + 1);
				st[si] = Math.min(st[val], st[val + 1]);
			}
	
			int get(int ss, int se, int l, int r, int si) 
			{
				if (l > se || r < ss || l > r)
					return Integer.MAX_VALUE;
				if (l <= ss && r >= se)
					return st[si];
				int mid = (ss + se) / 2;
				int val = 2 * si;
				return Math.min(get(ss, mid, l, r, val),
						get(mid + 1, se, l, r, val + 1));
			}
		}
	
		static class ST 
		{
			int arr[], lazy[], n;
	
			ST(int a) 
			{
				n = a;
				arr = new int[10 * n];
				lazy = new int[10 * n];
			}
	
			void up(int l, int r, int val)
			{
				update(0, n - 1, 0, l, r, val);
			}
	
			void update(int l, int r, int c, int x, int y, int val)
			{
				if (lazy[c] != 0) {
					lazy[2 * c + 1] += lazy[c];
					lazy[2 * c + 2] += lazy[c];
					if (l == r)
						arr[c] += lazy[c];
					lazy[c] = 0;
				}
				if (l > r || x > y || l > y || x > r)
					return;
				if (x <= l && y >= r) 
				
				{
					lazy[c] += val;
					return;
				}
				int mid = l + r >> 1;
				update(l, mid, 2 * c + 1, x, y, val);
				update(mid + 1, r, 2 * c + 2, x, y, val);
				arr[c] = Math.max(arr[2 * c + 1], arr[2 * c + 2]);
			}
	
			int an(int ind) 
			{
				return ans(0, n - 1, 0, ind);
			}
	
			int ans(int l, int r, int c, int ind) 
			{
				if (lazy[c] != 0) 
				{
					lazy[2 * c + 1] += lazy[c];
					lazy[2 * c + 2] += lazy[c];
					if (l == r)
						arr[c] += lazy[c];
					lazy[c] = 0;
				}
				if (l == r)
					return arr[c];
				int mid = l + r >> 1;
				if (mid >= ind)
					return ans(l, mid, 2 * c + 1, ind);
				return ans(mid + 1, r, 2 * c + 2, ind);
			}
		}
	
		public static int[] shuffle(int[] a, Random gen)
		{
			for (int i = 0, n = a.length; i < n; i++)
			{
				int ind = gen.nextInt(n - i) + i;
				int d = a[i];
				a[i] = a[ind];
				a[ind] = d;
			}
			return a;
		}
	
		long power(long x, long y, int mod) 
		{
			long ans = 1;
			while (y > 0) 
			{
				if (y % 2 == 0) 
				{
					x = (x * x) % mod;
					y /= 2;
				} else 
				{
					ans = (x * ans) % mod;
					y--;
				}
			}
			return ans;
		}
	
		// To Get Input
		// Some Buffer Methods
		private byte[] inbuf = new byte[1024];
		public int lenbuf = 0, ptrbuf = 0;
	
		private int readByte()
		{
			if (lenbuf == -1)
				throw new InputMismatchException();
			if (ptrbuf >= lenbuf) 
			{
				ptrbuf = 0;
				try 
				{
					lenbuf = is.read(inbuf);
				} catch (IOException e)
				{
					throw new InputMismatchException();
				}
				if (lenbuf <= 0)
					return -1;
			}
			return inbuf[ptrbuf++];
		}
	
		private boolean isSpaceChar(int c) 
		{
			return !(c >= 33 && c <= 126);
		}
	
		private int skip() 
		{
			int b;
			while ((b = readByte()) != -1 && isSpaceChar(b))
				;
			return b;
		}
	
		private double nd() 
		{
			return Double.parseDouble(ns());
		}
	
		private char nc() 
		{
			return (char) skip();
		}
	
		private String ns()
		{
			int b = skip();
			StringBuilder sb = new StringBuilder();
			while (!(isSpaceChar(b)))
			{ // when nextLine, (isSpaceChar(b) && b != '
										// ')
				sb.appendCodePoint(b);
				b = readByte();
			}
			return sb.toString();
		}
	
		private char[] ns(int n) 
		{
			char[] buf = new char[n];
			int b = skip(), p = 0;
			while (p < n && !(isSpaceChar(b)))
			{
				buf[p++] = (char) b;
				b = readByte();
			}
			return n == p ? buf : Arrays.copyOf(buf, p);
		}
	
		private char[][] nm(int n, int m)
		{
			char[][] map = new char[n][];
			for (int i = 0; i < n; i++)
				map[i] = ns(m);
			return map;
		}
	
		private int[] na(int n)
		{
			int[] a = new int[n];
			for (int i = 0; i < n; i++)
				a[i] = ni();
			return a;
		}
	
		private int ni() 
		{
			int num = 0, b;
			boolean minus = false;
			while ((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'))
				;
			if (b == '-')
			{
				minus = true;
				b = readByte();
			}
	
			while (true) 
			{
				if (b >= '0' && b <= '9') 
				{
					num = num * 10 + (b - '0');
				} else 
				{
					return minus ? -num : num;
				}
				b = readByte();
			}
		}
	
		private long nl() 
		{
			long num = 0;
			int b;
			boolean minus = false;
			while ((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'))
				;
			if (b == '-') 
			{
				minus = true;
				b = readByte();
			}
	
			while (true) 
			{
				if (b >= '0' && b <= '9') 
				{
					num = num * 10 + (b - '0');
				} else 
				{
					return minus ? -num : num;
				}
				b = readByte();
			}
		}
	
		private boolean oj = System.getProperty("ONLINE_JUDGE") != null;
	
		private void tr(Object... o) 
		{
			if (!oj)
				System.out.println(Arrays.deepToString(o));
		}
	}