#include<bits/stdc++.h>
using namespace std;
#define double long double
#define ll long long
#define Test int T;cin>>T;while(T--)
#define pi acos(-1)
#define endl "\n"
#define fx(x) fixed<<setprecision(x)
#define sz(s) (int)s.size()
#define all(v) (v).begin(),(v).end()
#define allr(v) (v).rbegin(),(v).rend()
#define mem(a,n) memset((a),n,sizeof (a))
#define INF 1e9
#define ii pair<ll,ll>
ll gcd(ll x,ll y){return(!y?x:gcd(y,x%y));}
ll lcm(ll x,ll y){return x/gcd(x,y)*y;}
void file(){
#ifndef ONLINE_JUDGE
    freopen("in.txt", "r", stdin);
    freopen("out.txt", "w", stdout);
#else
    //freopen("journey.in", "r", stdin);
    //freopen("journey.out", "w", stdout);
#endif
}
void fast(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    file();
}
int dx[]= {0,0,1,-1};
int dy[]= {-1,1,0,0};
const double eps=1e-9;
const int mod=1e9+7;
const int N=3e5+5;
void solve(){
    ll x;
    cin>>x;
    vector<ll>ans;
    map<ll,int>mp;
    ll i=1;
    while(x-i>0&&!mp[x-i]){
        ans.push_back(i);
        mp[i]=1;
        x-=i;
        i++;
    }
    if(x>0)ans.push_back(x);
    cout<<sz(ans)<<endl;
    for(auto i:ans)cout<<i<<" ";
}
int main(){
    fast();
    solve();
    return 0;
}