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#include<iostream>

using namespace std;

int suma_binarna(int dl, int liczba){
    int wynik = 0;
    int potega = 2;
    for(int i = 1; i < dl; i++){
        potega *= 2; 
    }
    for(int i = dl + 1; i > 0; i--){
        if(potega <= liczba){
            liczba -= potega;
            wynik++;
        }
        if(0 == liczba){
            break;

        }
        potega /= 2;
    }
    return wynik;
}



int main(){
    int n;
    cin >> n;
    
    //cout << suma_binarna(3, n);
    
    int *odp = new int[n];
    int dl = 1;
    int j = 0;
    while(n > 0){
        j++;
        int suma = suma_binarna(dl, j);
        if(dl == suma){
            dl++;
        }
        odp[j-1] = j;
        n -= suma;
        if(suma == dl - 1 and n < 0){
            dl--;
        }
    }
    int dl_ciagu = j;
    int ost_element = j - 1;
    while(n < 0){
        j--;
        int suma = suma_binarna(dl, j);
        if(-1*n >= suma){
            n += suma;
            odp[j-1] = 0;
            dl_ciagu--;
        }
    }
    cout << dl_ciagu << "\n";
    for(int i = ost_element; i > -1  ; i--){
        if(odp[i] != 0){
            cout << odp[i] << " ";
        }
    }



    delete [] odp;
    return 0;
}