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(5));
        
    }
} 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(5));
        
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        System.out.println("2018/" + s.substring(5));
        
    } main {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        System.out.println("2018/" + s.substring(5));
        
    } 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(5)) System.out.println System.out System System.out "2018/" + s.substring(5) "2018/" s.substring(5) s.substring s 5 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(5));
        
    }
} 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(5));
        
    }
} 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(5));
        
    }
}