#include <iostream>
#include <vector>
#include <queue>
#include <algorithm>
#include <set>
#include <stack>
#include <limits.h>
#include <math.h>
#include <iomanip>
#include <bitset>
#include <unordered_map>
#include <unordered_set>
#include <map>
#include <cstring>
#include <sstream>
#pragma GCC target("popcnt")
typedef long long ll;
typedef long double ld;
using namespace std;
const int MOD=1e9+7;
typedef pair<ll,ll>point;
//#define x first
//#define y second
int n,x;
int arr[200000];
int dp[1000][1000];
int main(){
ios::sync_with_stdio(false);
cout.tie(NULL);
cin.tie(NULL);
//freopen("speeding.in","r",stdin);
//freopen("speeding.out","w",stdout);
cin>>n>>x;
for(int i=0;i<n;i++)
cin>>arr[i];
for(int curr=0;curr<n;curr++){
for(int end=0;end<n;end++){
if(end>curr){
dp[curr][end]=dp[curr][0];
continue;
}
int res=1;
int a=arr[curr];
if(end>curr)
a-=x;
for(int i=0;i<curr;i++){
int b=arr[i];
if(end>i)
b-=x;
if(b<a)
res=max(res,dp[i][end]+1);
}
dp[curr][end]=res;
}
}
int res=0;
for(int end=0;end<n;end++){
for(int i=0;i<n;i++){
res=max(res,dp[i][end]);
}
}
cout<<res<<"\n";
return 0;
}
/*
8 10
7 3 5 12 2 7 3 4
*/
