import java.util.*;

public class Main {
    public static void main(String args[]) throws Exception {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
		
        System.out.println("2018" + s.substring(4));
    }
} import java.util.*; util.* java public class Main {
    public static void main(String args[]) throws Exception {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
		
        System.out.println("2018" + s.substring(4));
    }
} Main public static void main(String args[]) throws Exception {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
		
        System.out.println("2018" + s.substring(4));
    } main {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
		
        System.out.println("2018" + s.substring(4));
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String s = sc.next(); s sc.next() sc.next sc System.out.println("2018" + s.substring(4)) System.out.println System.out System System.out "2018" + s.substring(4) "2018" s.substring(4) s.substring s 4 String args[] args public class Main {
    public static void main(String args[]) throws Exception {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
		
        System.out.println("2018" + s.substring(4));
    }
} public class Main {
    public static void main(String args[]) throws Exception {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
		
        System.out.println("2018" + s.substring(4));
    }
} Main
import java.util.*;

public class Main {
    public static void main(String args[]) throws Exception {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
		
        System.out.println("2018" + s.substring(4));
    }
}
