import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String s = sc.next();
    System.out.println("2018"+s.substring(4,10));
  }
} import java.util.*; util.* java public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String s = sc.next();
    System.out.println("2018"+s.substring(4,10));
  }
} Main public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String s = sc.next();
    System.out.println("2018"+s.substring(4,10));
  } main {
    Scanner sc = new Scanner(System.in);
    String s = sc.next();
    System.out.println("2018"+s.substring(4,10));
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String s = sc.next(); s sc.next() sc.next sc System.out.println("2018"+s.substring(4,10)) System.out.println System.out System System.out "2018"+s.substring(4,10) "2018" s.substring(4,10) s.substring s 4 10 String[] args args public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String s = sc.next();
    System.out.println("2018"+s.substring(4,10));
  }
} public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String s = sc.next();
    System.out.println("2018"+s.substring(4,10));
  }
} Main
import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String s = sc.next();
    System.out.println("2018"+s.substring(4,10));
  }
}