import java.util.*;

public class Main {
	
  	public static void main(String args[]) {
		Scanner sc = new Scanner(System.in);
      	String input = sc.nextLine();
      	String[] inputs = input.split("/");
      	System.out.println("2018/"+inputs[1]+"/"+inputs[2]);
    }
}
/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