import java.util.*;
public class Main{
 public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
 
   String S = sc.next();

   String ans = "2018"+S.substring(4,S.length()); 
   System.out.println(ans);
 }
} import java.util.*; util.* java public class Main{
 public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
 
   String S = sc.next();

   String ans = "2018"+S.substring(4,S.length()); 
   System.out.println(ans);
 }
} Main public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
 
   String S = sc.next();

   String ans = "2018"+S.substring(4,S.length()); 
   System.out.println(ans);
 } main {
   Scanner sc = new Scanner(System.in);
 
   String S = sc.next();

   String ans = "2018"+S.substring(4,S.length()); 
   System.out.println(ans);
 } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String S = sc.next(); S sc.next() sc.next sc String ans = "2018"+S.substring(4,S.length()); ans "2018"+S.substring(4,S.length()) "2018" S.substring(4,S.length()) S.substring S 4 S.length() S.length S System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main{
 public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
 
   String S = sc.next();

   String ans = "2018"+S.substring(4,S.length()); 
   System.out.println(ans);
 }
} public class Main{
 public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
 
   String S = sc.next();

   String ans = "2018"+S.substring(4,S.length()); 
   System.out.println(ans);
 }
} Main
import java.util.*;
public class Main{
 public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
 
   String S = sc.next();

   String ans = "2018"+S.substring(4,S.length()); 
   System.out.println(ans);
 }
}