#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <stack>
#include <algorithm>
#include <string>
#include <map>
#include <iterator>
#include <set>
#include <queue>
#include <bitset>
#include <cassert>

using namespace std;


int main() {


    int N;
    cin>>N;
    string s;
    for (int i = 0; i < N / 2; ++i) {
        s += "1";
    }
    cout << s << endl;

}