using System;

​

public class Rational

{

    public int num; 

    public int denum;   

    public double dec;

    public void Add(Rational r)

    {

        this.num = this.num * r.denum + r.num * this.denum;

        this.denum = this.denum*r.denum;   

    }

    public void Sub(Rational r)

    {

        this.num = this.num * r.denum - r.num * this.denum;

        this.denum = this.denum*r.denum;           

    }

    public void Mult(Rational r)

    {

        this.num = this.num * r.num ;

        this.denum = this.denum*r.denum;           

    }   

    public void Div(Rational r)

    {

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

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

    }

    public int Compare(Rational r)

    {

        if (this.num*r.denum > r.num*this.denum)

        {

            return 1;

        }

        if (this.num*r.denum < r.num*this.denum)

        {

            return -1;

        }

        return 0;

    }

    public double Dec()

    {

        return this.dec = (double)this.num/ this.denum; 

    }

    public void Print(Rational r)

    {       

        this.dec = (double)this.num/ this.denum;

        Console.WriteLine(this.dec);

    }

    public Rational(int n, int d)

    {

        num = n; denum = d;

    }

    public Rational(Rational r)

    {

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

    }

}

​

public class Program

{

    public static void Main()

    {

        int xnum, xdenum, ynum, ydenum;

        Console.Write("xnum = "); xnum = int.Parse(Console.ReadLine());

        Console.Write("xdenum = "); xdenum = int.Parse(Console.ReadLine());

        Console.Write("ynum = "); ynum = int.Parse(Console.ReadLine());

        Console.Write("ydenum = "); ydenum = int.Parse(Console.ReadLine());

        Rational x = new Rational(xnum, xdenum);

        Rational y = new Rational(ynum, ydenum);

        int c = x.Compare(y);

        Rational a =new Rational(x); a.Add(y); a.Print(a);

        Rational m = new Rational(x); m.Add(y); m.Print(m);

        Rational d = new Rational(x); d.Add(y); d.Print(d);

        if (c==1) Console.WriteLine("x > y");

        else if (c== -1) Console.WriteLine("x < y");

        else Console.WriteLine("x = y");

    }

}