#include <bits/stdc++.h>
//#include <atcoder/all>
using namespace std;
//using namespace atcoder;
typedef long long ll;
typedef pair<ll,ll> P;
//typedef modint998244353 mint;
#define rep(i,a,b) for(ll i=a;i<b;i++)
#define rrep(i,a,b) for(ll i=a;i>=b;i--)
int main(void){
    cin.tie(0);
    ios::sync_with_stdio(0);
    ll n;
    cin>>n;
    if(n==0){
        cout<<"0"<<endl;
        return 0;
    }else{
        rep(i,0,n-1){
            cout<<"0";
        }
        cout<<"010"<<endl;
    }

}