using System;

public class Program

{

    public static void Main()

    { public int num;  // числител

      public int denum; // знаменател

      public double dec; // десетично представяне

      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;}

     public void Print (Rational r)

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

     public void Main(string[]args)

     { 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);s.Sub(y);s.Print();

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

      Rational d = new Rational(x);d.Div(y);d.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");

     }

}