package ¼ÆËãÆ÷;

public class c {
	
public double  add(double a,double b)
{
	return a+b;
}

public double min(double a,double b)
{
	return a-b;
}

public double mul(double a,double b)
{
	
	return a*b;
}

public double div(double a,double b)
{
	if(b!=0) 
	 return a/b;
	else
	 return 0;
	
}
}