Bittijono

input/code.cpp: In function 'int main()':
input/code.cpp:86:11: error: 'z' was not declared in this scope
   int k = z;
           ^
input/code.cpp:110:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if (l[i] >= sh.length()) break;
                          ^
input/code.cpp:116:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if (l[i] + l[j] >= sh.length()) break;
                                   ^
input/code.cpp:150:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       if (l[i] + l[j] >= sh.length()) break;
                                    ^

#include <bits/stdc++.h>

#define N (1<<19)
#define ll long long
#define ld long double
#define M 1000000007
#define INF 0x5ADFACE5
#define LINF 0x51DEEFFEC7C0DECALL
#define pii pair<int, int>
#define pll pair<long long, long long>
#define F first
#define S second

using namespace std;

// testataanpas... hmm...

struct X {
	int v[3][3];
};

X I = {{{1, 0, 0}, {0, 1, 0}, {0, 0, 1}}};
X A = {{{1, 1, 1}, {1, 0, 0}, {0, 0, 1}}};
X B = {{{2, -1, 0}, {1, 0, 0}, {0, 0, 1}}};
X AI = {{{0, 1, 0}, {1, -1, -1}, {0, 0, 1}}};
X BI = {{{0, 1, 0}, {-1, 2, 0}, {0, 0, 1}}};



inline bool eq (const X a, const X b) {
	for (int y = 0; y < 3; y++) {
		for (int x = 0; x < 3; x++) {
			if (a.v[y][x] != b.v[y][x]) return false;
		}
	}
	return true;
}

X mul (const X a, const X b) {
	if (eq(b, I)) return a;
	if (eq(a, I)) return b;
	X c;
	for (int y = 0; y < 3; y++) {
		for (int x = 0; x < 3; x++) {
			c.v[y][x] = 0;
			for (int z = 0; z < 3; z++) {
				c.v[y][x] += a.v[y][z] * b.v[z][x];
			}
		}
	}
	return c;
}

X v[(1<<16)];
X inv[(1<<16)];
//vector<int> su[4181];

vector<int> su[6765][4181];

int l[(1<<16)];

int test (const string s) {
	int l = s.length();
	int dp[l];
	int l1 = -1;
	int l0 = -1;
	for (int j = 0; j < l; j++) {
		dp[j] = 0;
		if (s[j] == '1') {
			if (j) dp[j] = 2 * dp[j - 1];
			else dp[j] = 2;
			if (l1 != -1) dp[j] -= !l1 ? 1 : dp[l1 - 1];
			l1 = j;
		} else {
			if (j) dp[j] = 2 * dp[j - 1];
			else dp[j] = 2;
			if (l0 != -1) dp[j] -= !l0 ? 1 : dp[l0 - 1];
			l0 = j;
		}
	}
	return dp[l - 1];
}

int main () {
	//for (int z = 1000000; z >= 0; z--) {
		int k = z;
	//	cout<<k<<" -> ";
		cin>>k;
		k++;
		v[0] = I;
		inv[0] = I;
		for (int i = 1; i < (1<<16); i++) {
			if (i & 1) v[i] = mul(v[(i - 1) / 2], A);
			else v[i] = mul(v[(i - 1) / 2], B);
			if (i & 1) inv[i] = mul(AI, inv[(i - 1) / 2]);
			else inv[i] = mul(BI, inv[(i - 1) / 2]);
			l[i] = l[(i - 1) / 2] + 1;
		}
		int mx = 0;
		int mx2 = 0;
		for (int i = 0; i < (1<<16); i++) {
			X a = v[i];
			mx = max(mx, a.v[0][0] + a.v[0][2]);
			mx2 = max(mx2, a.v[1][0] + a.v[1][2]);

			su[a.v[0][0] + a.v[0][2]][a.v[1][0] + a.v[1][2]].push_back(i);
		}
		string sh = "1111111111111111111111111111111111111111111111";
		for (int i = 0; i < (1<<16); i++) {
			if (l[i] >= sh.length()) break;
			X ai = inv[i];
			if (ai.v[0][1] == 0) {
				int q = (ai.v[0][0] * k + ai.v[0][2]);
				int q2 = (ai.v[1][0] * k + ai.v[1][2]);
				if (q >= 0 && q <= 6764 && q2 <= 4180 && q2 >= 0) for (int j : su[q][q2]) {
					if (l[i] + l[j] >= sh.length()) break;
					X p = mul(v[i], v[j]);
					if (p.v[0][0] + p.v[0][2] == k) {
						int c = 0;
						string s = "";
						int ic = i;
						int jc = j;
						for (int k = l[i]; k --> 0;) {
							if (i % 2) c = 1 - c;
							i = (i - 1) / 2;
							s += c ? '1' : '0'; 
						}
						string t;
						for (int k = l[j]; k --> 0;) {
							if (j % 2) c = 1 - c;
							j = (j - 1) / 2;
							t += c ? '1' : '0'; 
						}
						reverse(t.begin(), t.end());
						s += t;
						if (test(s) == k) {
							if (s.length() < sh.length()) sh = s;
						}
						i = ic;
						j = jc;
					}
				}
			} else {
				int q = (ai.v[0][0] * k + ai.v[0][2]);
				int q2 = (ai.v[1][0] * k + ai.v[1][2]);
				int c = q / ai.v[0][1];
				while (q - ai.v[0][1] * c <= 6764) {
					// 4180 * (a.v[0][0] + a.v[0][2]) + a.v[1][0] + a.v[1][2]
					if (q - ai.v[0][1] * c >= 0 && q2 - ai.v[1][1] * c >= 0 && q2 - ai.v[1][1] * c <= 4180) for (int j : su[q - ai.v[0][1] * c][q2 - ai.v[1][1] * c]) {
						if (l[i] + l[j] >= sh.length()) break;
						X p = mul(v[i], v[j]);
						if (p.v[0][0] + p.v[0][2] == k) {
							int c = 0;
							//cout<<i<<" "<<j<<" "<<c<<" "<<ai.v[0][1]<<endl;
							string s = "";
							int ic = i;
							int jc = j;
							for (int k = l[i]; k --> 0;) {
								if (i % 2) c = 1 - c;
								i = (i - 1) / 2;
								s += c ? '1' : '0'; 
							}
							string t;
							for (int k = l[j]; k --> 0;) {
								if (j % 2) c = 1 - c;
								j = (j - 1) / 2;
								t += c ? '1' : '0'; 
							}
							reverse(t.begin(), t.end());
							s += t;
							if (test(s) == k) {
								if (s.length() < sh.length()) sh = s;
							}
							i = ic;
							j = jc;
						}
					}

					if (ai.v[0][1] < 0) c++;
					else c--;
				}
			}
		}
		cout<<sh<<endl;
	//}
}