import java.util.Scanner;

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

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