import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String s = scan.next();
		char[] c = new char[2];
		c[0] = s.charAt(s.length()-2);
		c[1] = s.charAt(s.length()-1);
		String r = new String(c);
		System.out.println("2018/01/"+r);
	}
} 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.next();
		char[] c = new char[2];
		c[0] = s.charAt(s.length()-2);
		c[1] = s.charAt(s.length()-1);
		String r = new String(c);
		System.out.println("2018/01/"+r);
	}
} Main public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String s = scan.next();
		char[] c = new char[2];
		c[0] = s.charAt(s.length()-2);
		c[1] = s.charAt(s.length()-1);
		String r = new String(c);
		System.out.println("2018/01/"+r);
	} main {
		Scanner scan = new Scanner(System.in);
		String s = scan.next();
		char[] c = new char[2];
		c[0] = s.charAt(s.length()-2);
		c[1] = s.charAt(s.length()-1);
		String r = new String(c);
		System.out.println("2018/01/"+r);
	} Scanner scan = new Scanner(System.in); scan new Scanner(System.in) String s = scan.next(); s scan.next() scan.next scan char[] c = new char[2]; c new char[2] 2 c[0] = s.charAt(s.length()-2) c[0] c 0 s.charAt(s.length()-2) s.charAt s s.length()-2 s.length() s.length s 2 c[1] = s.charAt(s.length()-1) c[1] c 1 s.charAt(s.length()-1) s.charAt s s.length()-1 s.length() s.length s 1 String r = new String(c); r new String(c) System.out.println("2018/01/"+r) System.out.println System.out System System.out "2018/01/"+r "2018/01/" r String[] args args public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String s = scan.next();
		char[] c = new char[2];
		c[0] = s.charAt(s.length()-2);
		c[1] = s.charAt(s.length()-1);
		String r = new String(c);
		System.out.println("2018/01/"+r);
	}
} public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String s = scan.next();
		char[] c = new char[2];
		c[0] = s.charAt(s.length()-2);
		c[1] = s.charAt(s.length()-1);
		String r = new String(c);
		System.out.println("2018/01/"+r);
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String s = scan.next();
		char[] c = new char[2];
		c[0] = s.charAt(s.length()-2);
		c[1] = s.charAt(s.length()-1);
		String r = new String(c);
		System.out.println("2018/01/"+r);
	}
}
