#include "bits/stdc++.h"
using namespace std;
#define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i))
#define rep(i,j) FOR(i,0,j)
#define each(x,y) for(auto &(x):(y))
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define debug(x) cout<<#x<<": "<<(x)<<endl
#define smax(x,y) (x)=max((x),(y))
#define smin(x,y) (x)=min((x),(y))
#define MEM(x,y) memset((x),(y),sizeof (x))
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<ll> vll;

ll calc(ll d) {
  return (ll)((-1 + sqrt(1 + 4.0*d)) / 2.0);
}

ll calc2(ll d){
    // [lef, rig)
    ll rig = ll(1e9) + 1, lef = 0, mid;
    while(rig - lef > 1){
        mid = (rig + lef) / 2;
        ll val = mid*mid + mid;
        (val <= d ? lef : rig) = mid;
    }
    assert(lef*lef + lef <= d);
    return lef;
}

int main(){

    int cnt = 0;
    for(ll t = (ll)7e8; t >= 1;--t){
        ll dd = t*(t + 1) - 1;

        if(calc(dd) != calc2(dd)){
            cout << dd << endl;
            if(++cnt == 100000)break;
        }
    }

}