import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
      Scanner in = new Scanner(System.in);

      String str = in.next();

      String str2 = str.substring(8,10);

      System.out.println("2018/01/"+str2);

  }


} import java.util.Scanner; Scanner java.util public class Main {

    public static void main(String[] args) {
      Scanner in = new Scanner(System.in);

      String str = in.next();

      String str2 = str.substring(8,10);

      System.out.println("2018/01/"+str2);

  }


} Main public static void main(String[] args) {
      Scanner in = new Scanner(System.in);

      String str = in.next();

      String str2 = str.substring(8,10);

      System.out.println("2018/01/"+str2);

  } main {
      Scanner in = new Scanner(System.in);

      String str = in.next();

      String str2 = str.substring(8,10);

      System.out.println("2018/01/"+str2);

  } Scanner in = new Scanner(System.in); in new Scanner(System.in) String str = in.next(); str in.next() in.next in String str2 = str.substring(8,10); str2 str.substring(8,10) str.substring str 8 10 System.out.println("2018/01/"+str2) System.out.println System.out System System.out "2018/01/"+str2 "2018/01/" str2 String[] args args public class Main {

    public static void main(String[] args) {
      Scanner in = new Scanner(System.in);

      String str = in.next();

      String str2 = str.substring(8,10);

      System.out.println("2018/01/"+str2);

  }


} public class Main {

    public static void main(String[] args) {
      Scanner in = new Scanner(System.in);

      String str = in.next();

      String str2 = str.substring(8,10);

      System.out.println("2018/01/"+str2);

  }


} Main
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
      Scanner in = new Scanner(System.in);

      String str = in.next();

      String str2 = str.substring(8,10);

      System.out.println("2018/01/"+str2);

  }


}
