Problem: The only difference between easy and hard versions is constraints.

You are given n segments on the coordinate axis OX. Segments can intersect, lie inside each other and even coincide. The i-th segment is [l_i; r_i] (l_i ≤ r_i) and it covers all integer points j such that l_i ≤ j ≤ r_i.

The integer point is called bad if it is covered by strictly more than k segments.

Your task is to remove the minimum number of segments so that there are no bad points at all.

Input

The first line of the input contains two integers n and k (1 ≤ k ≤ n ≤ 200) — the number of segments and the maximum number of segments by which each integer point can be covered.

The next n lines contain segments. The i-th line contains two integers l_i and r_i (1 ≤ l_i ≤ r_i ≤ 200) — the endpoints of the i-th segment.

Output

In the first line print one integer m (0 ≤ m ≤ n) — the minimum number of segments you need to remove so that there are no bad points.

In the second line print m distinct integers p_1, p_2, ..., p_m (1 ≤ p_i ≤ n) — indices of segments you remove in any order. If there are multiple answers, you can print any of them.

Examples

Input


7 2
11 11
9 11
7 8
8 9
7 8
9 11
7 9


Output


3
1 4 7 


Input


5 1
29 30
30 30
29 29
28 30
30 30


Output


3
1 2 4 


Input


6 1
2 3
3 3
2 3
2 2
2 3
2 3


Output


4
1 3 5 6 

Solution (in JAVA):

Solution:
import java.io.*;
import java.lang.reflect.Array;
import java.math.BigInteger;
import java.util.*;


public class Main{
    static int mod1 = (int) (1e9 + 7);

    static class Reader {
        final private int BUFFER_SIZE = 1 << 16;
        Scanner scan = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
        private DataInputStream din;
        private byte[] buffer;
        private int bufferPointer, bytesRead;

        public Reader() {
            din = new DataInputStream(System.in);
            buffer = new byte[BUFFER_SIZE];
            bufferPointer = bytesRead = 0;
        }

        public Reader(String file_name) throws IOException {
            din = new DataInputStream(new FileInputStream(file_name));
            buffer = new byte[BUFFER_SIZE];
            bufferPointer = bytesRead = 0;
        }

        public String nextString() throws IOException {
            String str00 = scan.next();
            return str00;
        }

        public String readLine() throws IOException {
            byte[] buf = new byte[64]; // line length
            int cnt = 0, c;
            while ((c = read()) != -1) {
                if (c == '\n')
                    break;
                buf[cnt++] = (byte) c;
            }
            return new String(buf, 0, cnt);
        }

        String next() throws IOException {
            int c;
            for (c = read(); c <= 32; c = read());
            StringBuilder sb = new StringBuilder();
            for (; c > 32; c = read()) {
                sb.append((char) c);
            }
            return sb.toString();
        }

        public int nextInt() throws IOException {
            int ret = 0;
            byte c = read();
            while (c <= ' ')
                c = read();
            boolean neg = (c == '-');
            if (neg)
                c = read();
            do {
                ret = ret * 10 + c - '0';
            } while ((c = read()) >= '0' && c <= '9');

            if (neg)
                return -ret;
            return ret;
        }

        public long nextLong() throws IOException {
            long ret = 0;
            byte c = read();
            while (c <= ' ')
                c = read();
            boolean neg = (c == '-');
            if (neg)
                c = read();
            do {
                ret = ret * 10 + c - '0';
            }
            while ((c = read()) >= '0' && c <= '9');
            if (neg)
                return -ret;
            return ret;
        }

        public double nextDouble() throws IOException {
            double ret = 0, div = 1;
            byte c = read();
            while (c <= ' ')
                c = read();
            boolean neg = (c == '-');
            if (neg)
                c = read();

            do {
                ret = ret * 10 + c - '0';
            }
            while ((c = read()) >= '0' && c <= '9');

            if (c == '.') {
                while ((c = read()) >= '0' && c <= '9') {
                    ret += (c - '0') / (div *= 10);
                }
            }

            if (neg)
                return -ret;
            return ret;
        }

        private void fillBuffer() throws IOException {
            bytesRead = din.read(buffer, bufferPointer = 0, BUFFER_SIZE);
            if (bytesRead == -1)
                buffer[0] = -1;
        }

        private byte read() throws IOException {
            if (bufferPointer == bytesRead)
                fillBuffer();
            return buffer[bufferPointer++];
        }

        public void close() throws IOException {
            if (din == null)
                return;
            din.close();
        }

        public int[] nextArray(int n) throws IOException {
            int[] a = new int[n];
            for (int i = 0; i < n; i++) {
                a[i] = nextInt();
            }
            return a;
        }
    }


    static long GCD(long a, long b)
    {
        if (b == 0)
            return a;
        return GCD(b, a % b);
    }


    static long power(long x, long y, long p)
    {
        long res = 1;      // Initialize result

        x = x % p;  // Update x if it is more than or
        // equal to p

        while (y > 0)
        {
            // If y is odd, multiply x with result
            if (y%2!=0)
                res = (res*x) % p;

            // y must be even now
            y = y>>1; // y = y/2
            x = (x*x) % p;
        }
        return res;
    }


    static boolean primeCheck(long num0) {
        boolean b1 = true;
        if (num0 == 1) {
            b1 = false;
        } else {
            int num01 = (int) (Math.sqrt(num0)) + 1;
            me1:
            for (int i = 2; i < num01; i++) {
                if (num0 % i == 0) {
                    b1 = false;
                    break me1;
                }
            }
        }
        return b1;
    }

    public static int dev(int num1)
    {
        int num2=num1;
        int count00=0;
        while (num1%2==0)
        {
            count00++;
            num1/=2;
        }
        HashMap<Integer,Integer> hashMap=new HashMap<>();
        if(count00!=0)
        {
            hashMap.put(2,count00);
        }
        for (int i = 3; i <= (int)Math.sqrt(num1); i = i + 2)
        {
            // While i divides n, print i and divide n
            if(num1%i==0) {
                int count01 = 0;

                while (num1 % i == 0) {
                    num1 /= i;
                    count01++;
                }
                hashMap.put(i,count01);
            }
        }
        if(num1>2)
        {

            hashMap.put(num1,1);
        }

        long res00=1;
        for(int num00:hashMap.keySet())
        {
            int num01=num00;

            int sum1=0;

            int count01=(hashMap.get(num00));
            for(int i=0;i<count01;i++)
            {
                sum1+=num01;
                num01+=num00;
            }
            res00*=sum1;
        }

        boolean bool0=primeCheck(num2);
        if(bool0)
        {
            res00++;
        }

        return (int)(res00);
    }

    static TreeSet<Integer> ts=new TreeSet<>();
    static int[] arr0;
    static void get(int val,int cur)
    {
        ts.add(val);
        //System.out.println(val);
        if(cur==11)
        {
            return;
        }
        else
        {
            for(int i=cur+1;i<12;i++)
            {
                get(val+arr0[i],i);
            }
        }
    }

    public static void main(String[] args) throws IOException
    {
        Reader r = new Reader();
        //PrintWriter writer=new PrintWriter(System.out);
        //Scanner r = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
        //Scanner r=new Scanner(System.in);
        OutputWriter770 out=new OutputWriter770(System.out);

        int num1=r.nextInt();
        int k=r.nextInt();

        PriorityQueue<Integer>[] priorityQueue=new PriorityQueue[201];
        int[][] arr2=new int[num1+1][3];
        for(int i=0;i<201;i++)
        {
            priorityQueue[i]=new PriorityQueue<>(new Comparator<Integer>() {
                @Override
                public int compare(Integer o1, Integer o2) {
                    return arr2[o2][1]-arr2[o1][1];
                }
            });
        }

        for(int i=0;i<num1;i++)
        {
            int a=r.nextInt();
            int b=r.nextInt();
            arr2[i][0]=a;
            arr2[i][1]=b;
            arr2[i][2]=b-a+1;

            for(int j=a;j<b+1;j++)
            {
                priorityQueue[j].add(i);
            }
        }

        ArrayList<Integer> resList=new ArrayList<>();
        for(int i=0;i<201;i++)
        {
            if(priorityQueue[i].size()>k)
            {
                while (priorityQueue[i].size()>k)
                {
                    int last=priorityQueue[i].peek();
                    resList.add(last+1);
                    int a1=arr2[last][0];
                    int b1=arr2[last][1];
                    for(int j=a1;j<b1+1;j++)
                    {
                        priorityQueue[j].remove(last);
                    }
                }
            }
        }

        Collections.sort(resList);
        int len1=resList.size();

        out.print(len1+"\n");
        for(int num00:resList)
        {
            out.print(num00+" ");
        }

        r.close();
        out.close();
    }
}


class OutputWriter770
{
    BufferedWriter writer;

    public OutputWriter770(OutputStream stream)
    {
        writer = new BufferedWriter(new OutputStreamWriter(stream));
    }
    public void print(int i) throws IOException
    {
        writer.write(i + "");
    }

    public void println(int i) throws IOException
    {
        writer.write(i + "\n");
    }

    public void print(String s) throws IOException
    {
        writer.write(s + "");
    }

    public void println(String s) throws IOException
    {
        writer.write(s + "\n");
    }

    public void print(char[] c) throws IOException
    {
        writer.write(c);
    }

    public void close() throws IOException
    {
        writer.flush();
        writer.close();
    }
}