import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		sc.close();
		StringBuilder sb = new StringBuilder();
		sb.append("2018");
		sb.append(S.substring(4));
		System.out.println(sb.toString());
	}
} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		sc.close();
		StringBuilder sb = new StringBuilder();
		sb.append("2018");
		sb.append(S.substring(4));
		System.out.println(sb.toString());
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		sc.close();
		StringBuilder sb = new StringBuilder();
		sb.append("2018");
		sb.append(S.substring(4));
		System.out.println(sb.toString());
	} main {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		sc.close();
		StringBuilder sb = new StringBuilder();
		sb.append("2018");
		sb.append(S.substring(4));
		System.out.println(sb.toString());
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String S = sc.next(); S sc.next() sc.next sc sc.close() sc.close sc StringBuilder sb = new StringBuilder(); sb new StringBuilder() sb.append("2018") sb.append sb "2018" sb.append(S.substring(4)) sb.append sb S.substring(4) S.substring S 4 System.out.println(sb.toString()) System.out.println System.out System System.out sb.toString() sb.toString sb String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		sc.close();
		StringBuilder sb = new StringBuilder();
		sb.append("2018");
		sb.append(S.substring(4));
		System.out.println(sb.toString());
	}
} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		sc.close();
		StringBuilder sb = new StringBuilder();
		sb.append("2018");
		sb.append(S.substring(4));
		System.out.println(sb.toString());
	}
} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		sc.close();
		StringBuilder sb = new StringBuilder();
		sb.append("2018");
		sb.append(S.substring(4));
		System.out.println(sb.toString());
	}
}