import java.util.Scanner;

public class MathFunctions $\{$

public static void main $($String $[]$ args$)\{$

Scanner scnr $=$ new Scanner$($

System.in$)$;

double $x$;

double $y$;

double z;

$x=$ scnr$.$nextDouble$()$;

y $=$ scnr$.$nextDouble$()$;

$/*$ Your code goes here $*/$

System.out.printf$("\%\mathrm{.}1$f

$",$ z$)$; $//$ This will output $z$ with $1$ decimal place.