#include<iostream>
#include<algorithm>
#include<string>
#include<math.h>
#include<bitset>
#include <vector>
#include<bitset>
#include <iomanip>
#include <map>
#include <set>
#include <stack>
#include <deque>
#include <climits>
#include <queue>
using namespace std;


int main() {
	
	
	int N;
	cin >> N;
	cout << 0 << 1;
	for (int i = 1; i <= N; i++)cout << 0;


	
}