#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  int k;
  cin >> k;
  for (int len = 1; len <= 30; ++len) {
    for (int zero = 0; zero <= len; ++zero) {
      int one = len - zero;
      ll cnt = (1LL << zero) * (one * (one - 1) / 2);
      if (cnt == k) {
        cout << len << '\n';
        rep(_, zero) cout << "0 ";
        rep(_, one) cout << "1 ";
        cout << '\n';
        return 0;
      }
    }
  }
  assert(false);
  return 0;
}