2 1
1 1
 4 1
2 2 1 1
 10 1
2 6 3 4 2 4 4 3 2 1
 2 1
999152 999153
 8 1000000
1 1 5 1000000 1000000 2 2 2
 9 2
1 6 1 5 5 8 6 8 7
 15 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
 1 4
8
 10 1
6 3 1 3 6 4 1 3 6 4
 10 1
1 2 3 5 6 8 10 11 9 4
 7 2
1 5 5 8 9 8 8
 2 1000000
1 1000000
 8 2
3 13 9 8 3 13 9 14
 1 1
1
 2 1
1 2

2
 2
 4
 1
 2
 4
 15
 1
 7
 2
 4
 1
 5
 1
 1

import java.util.*;
import java.io.*;
public class Solution {
	public static void main(String[] args) throws FileNotFoundException, IOException {
		Scanner sc=new Scanner(System.in);
		//Scanner sc=new Scanner(new BufferedReader(new InputStreamReader(new FileInputStream("C:/Users/HP LAPTOP/Downloads/lazy_loading.txt"))));
		//BufferedWriter sp=new BufferedWriter(new FileWriter(new File("C:/Users/HP LAPTOP/Desktop/small_ans.txt")));
		//long startTime = System.nanoTime();
        int n=sc.nextInt();
        int k=sc.nextInt();
        ArrayList<Integer> a=new ArrayList();
        for (int i=0;i<n ;i++ ) {
        	a.add(sc.nextInt());
        }
	    Collections.sort(a);
	    int[] b=new int[n];
	    for (int i=0;i<n-1 ;i++ ) {
	    	if (b[i]==1) {
	    		continue;
	    	}
	    	for (int j=i+1;j<n ;j++ ) {
	    		if (a.get(i)+k>=a.get(j) && a.get(i)!=a.get(j)) {
	    			b[i]=1;
	    			break;
	    		}
	    	}
	    }
	    int ans=0;
	    for (int i=0;i<n ;i++ ) {
	    	if (b[i]==0) {
	    		ans++;
	    	}
	    }
	    System.out.println(ans);
	}
}