
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		String s=scan.nextLine();
		System.out.println(s.replace(s.substring(0, 4), "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.nextLine();
		System.out.println(s.replace(s.substring(0, 4), "2018"));

	}

} Main public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		String s=scan.nextLine();
		System.out.println(s.replace(s.substring(0, 4), "2018"));

	} main {
		Scanner scan=new Scanner(System.in);
		String s=scan.nextLine();
		System.out.println(s.replace(s.substring(0, 4), "2018"));

	} Scanner scan=new Scanner(System.in); scan new Scanner(System.in) String s=scan.nextLine(); s scan.nextLine() scan.nextLine scan System.out.println(s.replace(s.substring(0, 4), "2018")) System.out.println System.out System System.out s.replace(s.substring(0, 4), "2018") s.replace s s.substring(0, 4) s.substring s 0 4 "2018" String[] args args public class Main {

	public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		String s=scan.nextLine();
		System.out.println(s.replace(s.substring(0, 4), "2018"));

	}

} public class Main {

	public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		String s=scan.nextLine();
		System.out.println(s.replace(s.substring(0, 4), "2018"));

	}

} Main

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		String s=scan.nextLine();
		System.out.println(s.replace(s.substring(0, 4), "2018"));

	}

}