import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        try (Scanner in = new Scanner(System.in)) {
            String S = in.next();
            System.out.println(S.substring(0, 3) + "8" + S.substring(4, 10));
        }
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        try (Scanner in = new Scanner(System.in)) {
            String S = in.next();
            System.out.println(S.substring(0, 3) + "8" + S.substring(4, 10));
        }
    }
} Main public static void main(String[] args) {
        try (Scanner in = new Scanner(System.in)) {
            String S = in.next();
            System.out.println(S.substring(0, 3) + "8" + S.substring(4, 10));
        }
    } main {
        try (Scanner in = new Scanner(System.in)) {
            String S = in.next();
            System.out.println(S.substring(0, 3) + "8" + S.substring(4, 10));
        }
    } try (Scanner in = new Scanner(System.in)) {
            String S = in.next();
            System.out.println(S.substring(0, 3) + "8" + S.substring(4, 10));
        } {
            String S = in.next();
            System.out.println(S.substring(0, 3) + "8" + S.substring(4, 10));
        } Scanner in = new Scanner(System.in) Scanner in = new Scanner(System.in) new Scanner(System.in) String S = in.next(); S in.next() in.next in System.out.println(S.substring(0, 3) + "8" + S.substring(4, 10)) System.out.println System.out System System.out S.substring(0, 3) + "8" + S.substring(4, 10) S.substring(0, 3) + "8" + S.substring(4, 10) S.substring(0, 3) S.substring S 0 3 "8" S.substring(4, 10) S.substring S 4 10 String[] args args public class Main {
    public static void main(String[] args) {
        try (Scanner in = new Scanner(System.in)) {
            String S = in.next();
            System.out.println(S.substring(0, 3) + "8" + S.substring(4, 10));
        }
    }
} public class Main {
    public static void main(String[] args) {
        try (Scanner in = new Scanner(System.in)) {
            String S = in.next();
            System.out.println(S.substring(0, 3) + "8" + S.substring(4, 10));
        }
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        try (Scanner in = new Scanner(System.in)) {
            String S = in.next();
            System.out.println(S.substring(0, 3) + "8" + S.substring(4, 10));
        }
    }
}
