#include <bits/stdc++.h>
using namespace std;
using lli = long long;
#ifdef LOCAL
#include </home/marcus06/mycp/Library/debug.h>
#else
#define debug(...)
#endif
int lis(vector <int> &a) {
vector <int> L;
for (auto &x: a) {
auto it = lower_bound(L.begin(), L.end(), x);
if (it == L.end()) {
L.push_back(x);
} else {
*it = x;
}
}
return int(L.size());
}
void solve() {
int n, x;
cin >> n >> x;
vector <int> a(n);
for (int i = 0; i < n; ++i) {
cin >> a[i];
}
int ans = lis(a);
for (int i = 0; i < n; ++i) {
a[i] -= x;
ans = max(ans, lis(a));
}
cout << ans << '\n';
}
int main() {
std::cin.tie(0)->sync_with_stdio(0);
#ifdef LOCAL
auto begin = std::chrono::high_resolution_clock::now();
#endif
int tt = 1;
while (tt--) {
solve();
}
#ifdef LOCAL
auto end = std::chrono::high_resolution_clock::now();
auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
std::cerr << "Time measured: " << elapsed.count() * 1e-9 << " seconds.\n";
#endif
return 0;
}
