using System;
using System.Collections.Generic;
class test{
	static void Main(){
		new Sol().Solve();
	}
}
class Sol{
	public void Solve(){
		int N=(int)1e7;
		Dictionary<long,int> D=new Dictionary<long,int>(N*2);
		for(long x=1;x<N;x++){
			D.Add(++x,(int)(x*x%1000000007L));
		}
		
		long[] A=new long[(int)1e5];
		long[] B=new long[(int)1e5];
		
		Console.WriteLine(0);
	}
}