import java.util.*;

class Main {
	
	public static void main(String args[]){

		Scanner sc = new Scanner(System.in);

		StringBuilder insert = new StringBuilder("2018");

		String str = sc.next();

		StringBuilder sb = new StringBuilder(str);

		sb.delete(0, 4);

		insert.append(sb.toString());

		System.out.println(insert.toString());

	}
}

/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