using System;

​

class Rational

  {

    public int num;

    public int denum;

    public Rational(int n, int d)

    {

        this.num=n; this.denum=d;

    }

    public Rational(Rational r)

    {

        this.num=r.num; this.denum=r.denum;

    }

    public Rational(int n)

    {

        this.num=n; this.denum=1;

    }

    private static int GCD(int a,int b)

    {

        int tmp,r;

        if (a<b){tmp=a;a=b;b=tmp;}

        while (b!=0){r=a%b;a=b;b=r;}

        if (a>=0) return a;

        else return -a;

    }

    public static Rational operator + (Rational r1, Rational r2)

    { 

        Rational result = new Rational(0, 1);

        result.num = r1.num * r2.denum + r2.num * r1.denum;

        result.denum = r1.denum * r2.denum;

        int g = GCD(result.num, result.denum);

        result.num = result.num / g; result.denum = result.denum / g;

        return result;

    }

    public static bool operator >( Rational r1, Rational r2)

    { 

        if (r1.num * r2.denum > r1.denum * r2.num) return true;

        else return false;

    }

    public static bool operator <( Rational r1, Rational r2)

    { 

        if (r1.num * r2.denum < r1.denum * r2.num) return true;

        else return false;

    }

    public static Rational operator - (Rational r1, Rational r2)

    { 

        Rational result = new Rational (0, 1);

        int num = r1.num * r2.denum - r2.num *r1.denum;

        int denum = r1.denum * r2.denum; 

        int g = GCD(num, denum);

        result.num = num / g; 

        result.denum = denum / g;

        return result;

    }

    public static Rational operator * (Rational r1, Rational r2)

    { 

        Rational result = new Rational(0, 1);

        int num = r1.num * r2.num; 

        int denum = r1.denum * r2.denum;

        int g = GCD(num, denum);

        result.num = num / g; 

        result.denum = denum / g;

        return result;

    }

    public static Rational operator / (Rational r1, Rational r2)

    { 

        Rational result = new Rational(0, 1);

        int num = r1.num * r2.denum; 

        int denum = r1.denum * r2.num;

        int g = GCD(num, denum);

        result.num = num / g; 

        result.denum = denum / g;

        return result;

    }

    public static bool operator >= (Rational r1, Rational r2)

    { 

        if (r1.num * r2.denum >= r1.denum * r2.num) return true;

        else return false;

    }

    public static bool operator <= (Rational r1, Rational r2)

    { 

        if (r1.num * r2.denum <= r1.denum * r2.num) return true;

        else return false;

    }

  }

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

}