import java.util.*;

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

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