import java.util.*;

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

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