import java.util.Scanner;

public class Main {
    public static void main(String[] args) 
    {
        Scanner scanner = new Scanner(System.in);
        String date = scanner.nextLine();
        char[] date_c = date.toCharArray();
        date_c[3] = '8';
        for(int i = 0; i < 10; i++)
        {
            System.out.print(date_c[i]);
        }
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) 
    {
        Scanner scanner = new Scanner(System.in);
        String date = scanner.nextLine();
        char[] date_c = date.toCharArray();
        date_c[3] = '8';
        for(int i = 0; i < 10; i++)
        {
            System.out.print(date_c[i]);
        }
    }
} Main public static void main(String[] args) 
    {
        Scanner scanner = new Scanner(System.in);
        String date = scanner.nextLine();
        char[] date_c = date.toCharArray();
        date_c[3] = '8';
        for(int i = 0; i < 10; i++)
        {
            System.out.print(date_c[i]);
        }
    } main {
        Scanner scanner = new Scanner(System.in);
        String date = scanner.nextLine();
        char[] date_c = date.toCharArray();
        date_c[3] = '8';
        for(int i = 0; i < 10; i++)
        {
            System.out.print(date_c[i]);
        }
    } Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) String date = scanner.nextLine(); date scanner.nextLine() scanner.nextLine scanner char[] date_c = date.toCharArray(); date_c date.toCharArray() date.toCharArray date date_c[3] = '8' date_c[3] date_c 3 '8' for(int i = 0; i < 10; i++)
        {
            System.out.print(date_c[i]);
        } int i = 0; int i = 0; i 0 i < 10 i 10 i++ i++ i {
            System.out.print(date_c[i]);
        } {
            System.out.print(date_c[i]);
        } System.out.print(date_c[i]) System.out.print System.out System System.out date_c[i] date_c i String[] args args public class Main {
    public static void main(String[] args) 
    {
        Scanner scanner = new Scanner(System.in);
        String date = scanner.nextLine();
        char[] date_c = date.toCharArray();
        date_c[3] = '8';
        for(int i = 0; i < 10; i++)
        {
            System.out.print(date_c[i]);
        }
    }
} public class Main {
    public static void main(String[] args) 
    {
        Scanner scanner = new Scanner(System.in);
        String date = scanner.nextLine();
        char[] date_c = date.toCharArray();
        date_c[3] = '8';
        for(int i = 0; i < 10; i++)
        {
            System.out.print(date_c[i]);
        }
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) 
    {
        Scanner scanner = new Scanner(System.in);
        String date = scanner.nextLine();
        char[] date_c = date.toCharArray();
        date_c[3] = '8';
        for(int i = 0; i < 10; i++)
        {
            System.out.print(date_c[i]);
        }
    }
}
