using System;  

  public class FibonacciTriangle  

   {  

     public static void Main(string[] args)  

      {  

       int a=0,b=1,i,c,n,j;      

       Console.Write("Enter the limit: ");    

       n= int.Parse(Console.ReadLine());     

       for(i=1; i<=n; i++)      

       {      

        a=0;      

        b=1;      

        Console.Write(b+"\t");     

        for(j=1; j<i; j++)      

        {      

         c=a+b;      

         Console.Write(c+"\t");      

         a=b;  

         b=c;  

        }      

        Console.Write("\n");      

       }      

   }  

  }