#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define rep(i,n) for( int i = 0; i < n; i++ )
#define rrep(i,n) for( int i = n; i >= 0; i-- )
#define REP(i,s,t) for( int i = s; i <= t; i++ )
#define RREP(i,s,t) for( int i = s; i >= t; i-- )
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define INF 2000000000
#define mod 1000000007
#define INF2 1000000000000000000
#define int long long

signed main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
	int K; cin >> K;
	int tmp = 1;
	int zero = -1, one = -1;
	rep(i, 32) {
		int j = 2;
		while (tmp * j * (j - 1) / 2 <= K){
			if (tmp * j * (j - 1) / 2 == K) {
				zero = i;
				one = j;
				break;
			}
			j++;
		}
		tmp *= 2;
		if (zero != -1) break;
	}
	cout << zero + one << endl;
	while (zero--) {
		cout << 0 << " ";
	}
	while (--one) {
		cout << 1 << " ";
	}
	cout << 1 << endl;

    return 0;
}