    import java.util.Scanner;

    public class Main {
    	public static void main(String[] args){
    		 Scanner sc = new Scanner(System.in);
    		 String insert = sc.next();
    		 final String SEIKAI_YEAR = "2018";


    		 System.out.println(insert.replace("2017",SEIKAI_YEAR));
    	}
    }
/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