#include <bits/stdc++.h>
 
#define F first
#define S second
#define endl '\n'
#define em emplace_back
#define all(x) (x).begin(),(x).end()
#define IOS ios_base::sync_with_stdio(false);cin.tie(0); cout.tie(0)
 
using namespace std;
 
using ll=long long;
using ii=pair<int,int>;


int main() {
#ifdef LOCAL
    freopen("input.in","r",stdin);
#endif
    IOS;
    int t=1;
    //cin>>t;
    while(t--){
        ll x;
        cin>>x;
        vector<int>ans;
        int cur=1;
        while(x){
            if(x>=cur){
                x-=cur;
                ans.em(cur);
            }
            else{
                int y=ans.back();
                ans.pop_back();
                ans.em(y+x);
                break;
            }
            cur++;
        }

        cout<<ans.size()<<endl;
        for(auto i:ans){
            cout<<i<<" ";
        }
        cout<<endl;
    }
#ifdef LOCAL
    cerr << "\nTime elapsed: " << (1.0 * clock()) / CLOCKS_PER_SEC << " s.\n";
#endif
    return 0;
}