import java.util.*;
public class Main{
  public static void main(String[] args){
  Scanner sc = new Scanner(System.in);
  String ymd = sc.next();
    System.out.print("2018");
  for (int i = 4; i < ymd.length(); i++){
      System.out.print(ymd.charAt(i));
    }
  }
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz