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#include <bits/stdc++.h>
using namespace std;
int n,x,r=1,z,v,pom=1,h,ile,lol;
int tab[1000003];
int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  cin >> n;
  while(x<n)
    {
      tab[r]=__builtin_popcount(r);
      x+=tab[r];
      r++;
    }
  z=x-n;
  while(z!=0)
    {
     for(int i=r-1;i>=0;i--)
       {
         if(tab[i]<=z){
           z-=tab[i];
           lol++;
           tab[i]=0;
           break;
         }
       }
    }
  cout << r-1-ile-lol << "\n";
  for(int i=r-1;i>0;i--)
    {
      if(tab[i]!=0)
      {
        cout << i << " ";
      }
    }
}