#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define P pair<ll,ll>

int main(){
  int n;
  cin>>n;
  if(n==0){
    cout<<"0"<<endl;
    return 0;
  }
  string ans="01";
  rep(i,n) ans+="0";
  cout<<ans<<endl;
}