/*
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/**
 *
 * @author IT12FC1
 */
import java.util.*;
import java.text.*;
public class PreLab1 {
    public static void main (String[] args){
    double add, sub, mult, div, ave;
    DecimalFormat decFor4 = new DecimalFormat(".####");
    DecimalFormat decFor = new DecimalFormat(".0000");
    Scanner input = new Scanner (System.in);

    System.out.print("Enter 1st Number: ");
    double w = input.nextDouble();
    System.out.print("Enter 2nd Number: ");
    double x = input.nextDouble();
    System.out.print("Enter 3rd Number: ");
    double y = input.nextDouble();
    System.out.print("Enter 4th Number: ");
    double z = input.nextDouble();

    add = w+x+y+z;
    sub = w-x-y-z;
    mult = w*x*y*z;
    div = w/x/y/z;
    ave = w+x+y+z/4;
    System.out.println("Sum: "+decFor.format(add));
    System.out.println("Difference: "+decFor.format(sub));
    System.out.println("Product: "+decFor.format(mult));
    System.out.println("Quotient: "+decFor4.format(div));
    System.out.println("Average: "+decFor4.format(ave));
}
}