import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			String line = scanner.nextLine();
			System.out.println("2018/01/" + line.split("/")[2]);
		}
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			String line = scanner.nextLine();
			System.out.println("2018/01/" + line.split("/")[2]);
		}
	}
} Main public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			String line = scanner.nextLine();
			System.out.println("2018/01/" + line.split("/")[2]);
		}
	} main {
		try (Scanner scanner = new Scanner(System.in)) {
			String line = scanner.nextLine();
			System.out.println("2018/01/" + line.split("/")[2]);
		}
	} try (Scanner scanner = new Scanner(System.in)) {
			String line = scanner.nextLine();
			System.out.println("2018/01/" + line.split("/")[2]);
		} {
			String line = scanner.nextLine();
			System.out.println("2018/01/" + line.split("/")[2]);
		} Scanner scanner = new Scanner(System.in) Scanner scanner = new Scanner(System.in) new Scanner(System.in) String line = scanner.nextLine(); line scanner.nextLine() scanner.nextLine scanner System.out.println("2018/01/" + line.split("/")[2]) System.out.println System.out System System.out "2018/01/" + line.split("/")[2] "2018/01/" line.split("/")[2] line.split("/") line.split line "/" 2 String[] args args public class Main {
	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			String line = scanner.nextLine();
			System.out.println("2018/01/" + line.split("/")[2]);
		}
	}
} public class Main {
	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			String line = scanner.nextLine();
			System.out.println("2018/01/" + line.split("/")[2]);
		}
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			String line = scanner.nextLine();
			System.out.println("2018/01/" + line.split("/")[2]);
		}
	}
}
