#include<bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "
#pragma GCC optimize("Ofast")
#define int long long
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int range_rng(int l, int r)
{
return uniform_int_distribution<int>(l,r)(rng);
}
int pref[1005];
int suff[1005];
int a[1005];
signed main()
{
/*
ifstream fin("camere.in");
ofstream fout("camere.out");
*/
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int n,x,i,j,ans;
cin >> n >> x;
for (i=1;i<=n;i++)
cin >> a[i];
for (i=1;i<=n;i++)
{
pref[i]=1;
for (j=i-1;j>=1;j--)
{
if (a[i]>a[j])
pref[i]=max(pref[i],pref[j]+1);
}
}
for (i=n;i>=1;i--)
{
suff[i]=1;
for (j=i+1;j<=n;j++)
{
if (a[i]<a[j])
suff[i]=max(suff[i],suff[j]+1);
}
}
ans=0;
for (i=1;i<=n;i++)
{
for (j=i+1;j<=n;j++)
{
if (a[i]-x<a[j])
ans=max(ans,pref[i]+suff[j]);
}
}
cout << ans;
return 0;
}
