#include<bits/stdc++.h>

#define int long long
using namespace std;
#define rep(i, n) for(int i=0;i<(n);++i)
typedef pair<int, int> pii;
const int INF = 1l << 60;
#define u_b upper_bound
#define l_b lower_bound

int dp[300300];
int minv[300300];
int maxv[300300];

bool les(int a, int b) {
    if (a % 2 != b % 2) {
        return a % 2;
    }
    if (a % 2 == 1) {
        return a < b;
    }
    return a > b;
}

signed main() {
    int N;
    cin >> N;
    fill(dp, dp + 300300, INF);
    dp[0] = 0;
    minv[0] = 0, maxv[0] = 0;
    for (int i = 1; i <= N; ++i) {
        for (int j = 1; i - j * j >= 0; ++j) {
            if (dp[i] > dp[i - j * j] + j) {
                dp[i] = dp[i - j * j] + j;
                minv[i] = j;
                maxv[i] = j;
            } else if (dp[i] == dp[i - j * j] + j) {
                minv[i] = les(minv[i], j) ? minv[i] : j;
                maxv[i] = les(maxv[i], j) ? j : maxv[j];
            }
        }
    }
    string ans;
    int s = 0;
    while (N) {
        int j = s == 0 ? minv[N] : maxv[N];
        rep(i, j) {
            ans.push_back(s + '0');
            s = 1 - s;
        }
        s = 1 - s;
        N -= j * j;
    }
    cout << ans << endl;
    return 0;
}