import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.next();
        byte[] b = s.getBytes();
        b[3] = '8';
        s = new String(b);
        System.out.println(s);
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.next();
        byte[] b = s.getBytes();
        b[3] = '8';
        s = new String(b);
        System.out.println(s);
    }
} Main public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.next();
        byte[] b = s.getBytes();
        b[3] = '8';
        s = new String(b);
        System.out.println(s);
    } main {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.next();
        byte[] b = s.getBytes();
        b[3] = '8';
        s = new String(b);
        System.out.println(s);
    } Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) String s = scanner.next(); s scanner.next() scanner.next scanner byte[] b = s.getBytes(); b s.getBytes() s.getBytes s b[3] = '8' b[3] b 3 '8' s = new String(b) s new String(b) System.out.println(s) System.out.println System.out System System.out s String[] args args public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.next();
        byte[] b = s.getBytes();
        b[3] = '8';
        s = new String(b);
        System.out.println(s);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.next();
        byte[] b = s.getBytes();
        b[3] = '8';
        s = new String(b);
        System.out.println(s);
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.next();
        byte[] b = s.getBytes();
        b[3] = '8';
        s = new String(b);
        System.out.println(s);
    }
}