/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public enum Operation { 
		PLUS { double eval(double x, double y) { return x + y; } }, 
		MINUS { double eval(double x, double y) { return x - y; } }, 
		TIMES { double eval(double x, double y) { return x * y; } }, 
		DIVIDE { double eval(double x, double y) { return x / y; }}; 
 
		// Do arithmetic op represented by this constant 
		abstract double eval(double x, double y); 
	} 
 
 
	public static void main (String[] args) throws java.lang.Exception
	{
		double x = Double.parseDouble(args[0]); 
		double y = Double.parseDouble(args[1]); 
		for (Operation op : Operation.values()) 	
			System.out.printf("%f%s%f=%f%n",x,op,y,op.eval(x,y)); 
 
	}
}

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