#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;
using ll = long long;

int main(){
    ll k;
    cin >> k;
    vector<vector<ll>> a(35 , vector<ll>(35 , 0));
    for(int i = 2; i < 35; i++){
        a[i][0] = (ll)i * (i - 1) / 2;
    }
    for(int i = 2; i < 35; i++){
        for(int j = 1; j < 35; j++){
            a[i][j] = a[i][j - 1] * 2LL;
        }
    }
    
    vector<int> ans;
    int cnt_0 = 0 , cnt_1 = 0;
    for(int i = 2; i < 35; i++){
        for(int j = 0; j < 35; j++){
            if(a[i][j] == k){
                cnt_0 = j;
                cnt_1 = i;
                //cout << cnt_0 << " : " << cnt_1 << endl;
                break;
            }
        }
    }
    
    cout << cnt_0 + cnt_1 << endl;
    
    for(int i = 0; i < cnt_0; i++){
        cout << "0" << " ";
    }
    for(int i = 0; i < cnt_1; i++){
        cout << "1";
        if(i != cnt_1 - 1)cout << " ";
        else cout << endl;
    }
    
    return 0;
}