import java.util.Scanner;

public class Main {

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

        System.out.println(s.replaceFirst("2017", "2018"));
    }
} import java.util.Scanner; Scanner java.util public class Main {

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

        System.out.println(s.replaceFirst("2017", "2018"));
    }
} Main public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String s = scan.next();

        System.out.println(s.replaceFirst("2017", "2018"));
    } main {
        Scanner scan = new Scanner(System.in);
        String s = scan.next();

        System.out.println(s.replaceFirst("2017", "2018"));
    } Scanner scan = new Scanner(System.in); scan new Scanner(System.in) String s = scan.next(); s scan.next() scan.next scan System.out.println(s.replaceFirst("2017", "2018")) System.out.println System.out System System.out s.replaceFirst("2017", "2018") s.replaceFirst s "2017" "2018" String[] args args public class Main {

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

        System.out.println(s.replaceFirst("2017", "2018"));
    }
} public class Main {

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

        System.out.println(s.replaceFirst("2017", "2018"));
    }
} Main
import java.util.Scanner;

public class Main {

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

        System.out.println(s.replaceFirst("2017", "2018"));
    }
}
