#include using namespace std; #define int long long signed main() { int n,s; cin >> n >> s; vector> a(n+2); for(int i = 0; i < n; i++) { int x; cin >> x; a[i] = {x,i+1}; } a[n] = {-1e18,0}; a[n+1] = {1e18,n+1}; sort(a.begin(),a.end()); vector ans; for(int i = 1; i <= n; i++) { if(a[i].first > a[i-1].first+s && a[i].first < a[i+1].first-s) ans.push_back(a[i].second); } sort(ans.begin(),ans.end()); n = ans.size(); cout << n << endl; for(int i = 0; i < n; i++) cout << ans[i] << ' '; }