using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Diagnostics;
class TEST{
	static void Main(){
		Sol mySol =new Sol();
		mySol.Solve();
	}
}

class Sol{
	public void Solve(){
		
		
		long mod=(long)1e9+7;
		int H=(int)1e5+1;
		int W=(int)1e4;
		
		var L=new List<long>[H];
		for(int i=0;i<H;i++)L[i]=new List<long>();
		long a=(long)1e9+2;
		long b=(long)2e9%mod;
		
		Parallel.For(0,(long)H,i=>{
			long x=(i*W)%mod;
			long f=(x*x+a*x+b)%mod;
			for(long j=0;j<W;j++){
				if(f==0)L[i].Add(x);
				f+=2*x+1+a;
				while(f>=mod)f-=mod;
				x++;
			}
		});
		HashSet<long> Hs=new HashSet<long>();
		for(int i=0;i<H;i++){
			if(L[i].Count>0){
				foreach(var x in L[i])Hs.Add(x%mod);
			}
		}
		//Console.WriteLine(String.Join(" ",Hs.ToArray()));
		
		
		
		Console.WriteLine(0);
		
		
	}
	
	public Sol(){
		
	}

	static String rs(){return Console.ReadLine();}
	static int ri(){return int.Parse(Console.ReadLine());}
	static long rl(){return long.Parse(Console.ReadLine());}
	static double rd(){return double.Parse(Console.ReadLine());}
	static String[] rsa(char sep=' '){return Console.ReadLine().Split(sep);}
	static int[] ria(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>int.Parse(e));}
	static long[] rla(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>long.Parse(e));}
	static double[] rda(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>double.Parse(e));}
}