import java.util.Scanner;

public class StringModification $\{$

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

Scanner scnr $=$ new Scanner$($System$.$in$)$;

String inputString;

inputString $=$ scnr$.$nextLine$()$;

if $($inputString$($Character$.$isDigit$(4)))\{$

System.out.println$("$The fifth character is digit: $"+$ inputString$(4))$;

$\}$

else $\{$

System.out.println$("$The fifth character is not a digit."$)$;

$\}$

$\}$

$\}$