import java.util.*;
public class Main{
    public static void main(String args[]){
        Scanner scanner = new Scanner(System.in);

        String S = scanner.nextLine();
        String A = new String("2018");

        A = A.concat(S.substring(4));
        System.out.println(A);
        }
}
/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