import java.util.*;
import java.io.*;
public class Main {
        public static void main(String[] args){
                Scanner sc = new Scanner(System.in);
                Map hs = new HashMap();
                PrintWriter ou = new PrintWriter(System.out);
                String s = sc.next();
                sc.close();
                char[] c = new char[s.length()];
                for(int i = 0 ; i < s.length() ; i++){
                        c[i] = s.charAt(i);
                }
                ou.print("2018/01/" + c[8] + c[9] + "\n");
                ou.flush();
        }
} import java.util.*; util.* java import java.io.*; io.* java public class Main {
        public static void main(String[] args){
                Scanner sc = new Scanner(System.in);
                Map hs = new HashMap();
                PrintWriter ou = new PrintWriter(System.out);
                String s = sc.next();
                sc.close();
                char[] c = new char[s.length()];
                for(int i = 0 ; i < s.length() ; i++){
                        c[i] = s.charAt(i);
                }
                ou.print("2018/01/" + c[8] + c[9] + "\n");
                ou.flush();
        }
} Main public static void main(String[] args){
                Scanner sc = new Scanner(System.in);
                Map hs = new HashMap();
                PrintWriter ou = new PrintWriter(System.out);
                String s = sc.next();
                sc.close();
                char[] c = new char[s.length()];
                for(int i = 0 ; i < s.length() ; i++){
                        c[i] = s.charAt(i);
                }
                ou.print("2018/01/" + c[8] + c[9] + "\n");
                ou.flush();
        } main {
                Scanner sc = new Scanner(System.in);
                Map hs = new HashMap();
                PrintWriter ou = new PrintWriter(System.out);
                String s = sc.next();
                sc.close();
                char[] c = new char[s.length()];
                for(int i = 0 ; i < s.length() ; i++){
                        c[i] = s.charAt(i);
                }
                ou.print("2018/01/" + c[8] + c[9] + "\n");
                ou.flush();
        } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) Map hs = new HashMap(); hs new HashMap() PrintWriter ou = new PrintWriter(System.out); ou new PrintWriter(System.out) String s = sc.next(); s sc.next() sc.next sc sc.close() sc.close sc char[] c = new char[s.length()]; c new char[s.length()] s.length() s.length s for(int i = 0 ; i < s.length() ; i++){
                        c[i] = s.charAt(i);
                } int i = 0 ; int i = 0 ; i 0 i < s.length() i s.length() s.length s i++ i++ i {
                        c[i] = s.charAt(i);
                } {
                        c[i] = s.charAt(i);
                } c[i] = s.charAt(i) c[i] c i s.charAt(i) s.charAt s i ou.print("2018/01/" + c[8] + c[9] + "\n") ou.print ou "2018/01/" + c[8] + c[9] + "\n" c[9] "2018/01/" + c[8] + c[9] + "\n" "2018/01/" c[8] c 8 c[9] c 9 "\n" ou.flush() ou.flush ou String[] args args public class Main {
        public static void main(String[] args){
                Scanner sc = new Scanner(System.in);
                Map hs = new HashMap();
                PrintWriter ou = new PrintWriter(System.out);
                String s = sc.next();
                sc.close();
                char[] c = new char[s.length()];
                for(int i = 0 ; i < s.length() ; i++){
                        c[i] = s.charAt(i);
                }
                ou.print("2018/01/" + c[8] + c[9] + "\n");
                ou.flush();
        }
} public class Main {
        public static void main(String[] args){
                Scanner sc = new Scanner(System.in);
                Map hs = new HashMap();
                PrintWriter ou = new PrintWriter(System.out);
                String s = sc.next();
                sc.close();
                char[] c = new char[s.length()];
                for(int i = 0 ; i < s.length() ; i++){
                        c[i] = s.charAt(i);
                }
                ou.print("2018/01/" + c[8] + c[9] + "\n");
                ou.flush();
        }
} Main
import java.util.*;
import java.io.*;
public class Main {
        public static void main(String[] args){
                Scanner sc = new Scanner(System.in);
                Map hs = new HashMap();
                PrintWriter ou = new PrintWriter(System.out);
                String s = sc.next();
                sc.close();
                char[] c = new char[s.length()];
                for(int i = 0 ; i < s.length() ; i++){
                        c[i] = s.charAt(i);
                }
                ou.print("2018/01/" + c[8] + c[9] + "\n");
                ou.flush();
        }
}