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()

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

     return this.dec;

    }

    public void Print()

    {Console.WriteLine(this.num+"|"+this.denum);}

    public void decPrint()

    {Console.WriteLine(this.num+"|"+this.denum);

    Math.Round(Deciaml);}

    public Rational(int n,int d)

    {num=n;denum=d;}

    public Rational(int n)

    {num=n;denum=1;}

    public Rational(Rational r)

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

    this.dec=r.dec;}}

​

public class Program

{

    public static void Main()

    {int xnum, xdenum,ynum,ydenum;

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

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

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

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

     Rational x = new Rational(xnum,xdenum);

     Rational y = new Rational(ynum,ydenum);

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

     Rational s = new Rational(x); a.Sub(y); s.Print();

     Rational m = new Rational(x); a.Mult(y); m.Print();

     Rational d = new Rational(x); a.Div(y); d.Print();

     Rational de = new Rational(x); a.Dec(y); de.Print();

     int c =x.Compare(y);

     if(c==1)Console.WriteLine("X>Y");

     else if(c==-1)Console.WriteLine("X<Y");

     else Console.WriteLine("X=Y");

    }

}