#include <bits/stdc++.h>
template<class T> inline bool chmax(T& a, T b){ if (a < b){ a = b; return true; } return false; }
template<class T> inline bool chmin(T& a, T b){ if (a > b){ a = b; return true; } return false; }
using namespace std;
using ll = long long;
ll mod = 1e9+7;
const int dx[8] = {-1,0,1,0,-1,-1,1,1};
const int dy[8] = {0,1,0,-1,1,-1,1,-1};


int main(){
    int n;
    cin >> n;
    vector<int> a(1010, 0);
    a[1] = 1;
    for(int i=n+3; i<1010; ++i) a[i] = 1;
    for(int i=0; i<1010; ++i) cout << a[i];
    cout << endl;
    return 0;
}