package bai1;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class Bai1
{
    public static int [] A = new int [6];
    public static int N,K,min,max,kq,dem;
    public static void main (String [] args) throws FileNotFoundException
    {
        File file = new File("input.txt");
        Scanner scanner = new Scanner(file);

        N = scanner.nextInt();
        K = scanner.nextInt();
        for (int i=0;i<N;i++) A[i]=scanner.nextInt();

        kq = 0;
        for (int i=0;i<N;i++)
        {
            dem = 1; min = A[i]; max = A[i];
            for (int j=i+1;j<N;j++)
            {
                if ((Math.abs(A[j]-min)<=K)&(Math.abs(A[j]-max)<=K)) dem++;
                else break;
                if (A[j]>max) max = A[j];
                if (A[j]<min) min = A[j];
                if (dem>kq) kq = dem;
            }
        }
        System.out.print(kq);
    }
}