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