import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Main{
    public static void main(String[] args){
        try{
            BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
            String s = reader.readLine();
            String date = s.substring(4);
            String year = "2018";
            String ans = year.concat(date);
            System.out.println(ans);
        } catch (IOException e){
            e.printStackTrace();
        }
        
    }
}
/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