#include<iostream>
#include<stdio.h>
#include<stdlib.h>
#include<algorithm>
#include<vector>
#include<string.h>
#include<math.h>
#include<map>
#include<iomanip>
#include<queue>
#include<set>

using namespace std;
using ll = long long;
using ull = unsigned long long;

const long double inf = 1e9 + 7;

int main(){	
	cin.tie(0);
	ios::sync_with_stdio(false);
	int n;
	cin >> n;
	string s = "010";
	for(int i = 2; i <= n; i++){
		s += '0';
	}
	cout << s << endl;
	return 0;
}