import java.io.*;
public class Graafid1{
   static int[][] andmed;
   static void looGraaf(int tippudeArv){
      andmed=new int[tippudeArv][tippudeArv];
   }
   static void yhenda(int tipp1, int tipp2){
      andmed[tipp1][tipp2]=1;
      andmed[tipp2][tipp1]=1;
   }
   
   static void tryki(){
      for(int rida=0; rida<andmed.length; rida++){
         for(int veerg=0; veerg<andmed[0].length; veerg++){
            System.out.print(andmed[rida][veerg]);
         }
         System.out.println();
      }
   }
   static void trykiSeosed(){
      for(int rida=0; rida<andmed.length; rida++){
         System.out.print(rida+" ");
         for(int veerg=0; veerg<andmed[0].length; veerg++){
            if(andmed[rida][veerg]==1){
               System.out.print(veerg);            
            }
         }
         System.out.println();
      }
   }
   
   static void trykiSeosedFaili(String failinimi){
     try{
      PrintWriter faili=new PrintWriter(new FileWriter(failinimi));      
      for(int rida=0; rida<andmed.length; rida++){
         faili.print(rida+" ");
         for(int veerg=0; veerg<andmed[0].length; veerg++){
            if(andmed[rida][veerg]==1){
               faili.print(veerg);            
            }
         }
         faili.println();
      }
      faili.close();
     } catch(Exception ex){
         ex.printStackTrace();
     }
   }


   public static void main(String[] arg){
      looGraaf(5);
      yhenda(0, 1);
      yhenda(2, 1);
      tryki();
      trykiSeosedFaili("seosed1.txt");
   }
}