#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

ll calc(ll d) {
  return (ll)((-1 + sqrt(1 + 4*d)) / 2.0);
}

int main() {
  int count=0;
  for(ll i=0;i<100000000;i++){
      ll t = calc(i);
      if(((t+1)*(t+1)+(t+1)<i)){
         cout<<i<<endl;
         count++;
      }
      if(!(t*t+t<i)){
         cout<<i<<endl;
         count++;
      }
  }
  //cout<<count<<endl;
  return 0;
}