import java.util.*;
class Main
{
public static void main (String[] args)
{
Scanner sc =new Scanner(System.in);
String s= sc.next();
for(int i=0;i<3;i++)
System.out.print(s.charAt(i));
System.out.print('8');
for(int i=4;i<10;i++)
System.out.print(s.charAt(i));
}
}
/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