#include<iostream>
using namespace std;

int main(){

   int n;
   cin>>n;

   int i = 1;
   while(i<=n){
       int value;

      if(i%2==0){
        value = 0;
      }else{
      value =1;
      }


     int count = 1;
     while(count<=i){

        cout<<value;

        /*if(value == 1){
            value = 0;
        }else if(value == 0){
        value = 1;
        }*/

        value = 1 - value;

        count++;
     }

     cout<<endl;

    i++;
   }


  return 0;
}