
import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
 
 //    String[] nyu=sc.nextLine().split(" ");

     String nyu=sc.nextLine();
//int A=Integer.parseInt(nyu[0]);
//int B=Integer.parseInt(nyu[1]);
//int C=Integer.parseInt(nyu);



//double A=Double.parseDouble(nyu[0]);
//double B=Double.parseDouble(nyu[1]);
/*
switch(C){
case 7:
case 5:
case 3:
System.out.println("YES") ;
break;
default:
System.out.println("NO") ;

break;
}
*/

//int res=A*B;
//if(res%2==0){

System.out.println(nyu.replace("2017" , "2018"));
//}else{
//System.out.println("Odd");

//}




	}
} import java.util.*; util.* java public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
 
 //    String[] nyu=sc.nextLine().split(" ");

     String nyu=sc.nextLine();
//int A=Integer.parseInt(nyu[0]);
//int B=Integer.parseInt(nyu[1]);
//int C=Integer.parseInt(nyu);



//double A=Double.parseDouble(nyu[0]);
//double B=Double.parseDouble(nyu[1]);
/*
switch(C){
case 7:
case 5:
case 3:
System.out.println("YES") ;
break;
default:
System.out.println("NO") ;

break;
}
*/

//int res=A*B;
//if(res%2==0){

System.out.println(nyu.replace("2017" , "2018"));
//}else{
//System.out.println("Odd");

//}




	}
} Main public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
 
 //    String[] nyu=sc.nextLine().split(" ");

     String nyu=sc.nextLine();
//int A=Integer.parseInt(nyu[0]);
//int B=Integer.parseInt(nyu[1]);
//int C=Integer.parseInt(nyu);



//double A=Double.parseDouble(nyu[0]);
//double B=Double.parseDouble(nyu[1]);
/*
switch(C){
case 7:
case 5:
case 3:
System.out.println("YES") ;
break;
default:
System.out.println("NO") ;

break;
}
*/

//int res=A*B;
//if(res%2==0){

System.out.println(nyu.replace("2017" , "2018"));
//}else{
//System.out.println("Odd");

//}




	} main {
		Scanner sc = new Scanner(System.in);
 
 //    String[] nyu=sc.nextLine().split(" ");

     String nyu=sc.nextLine();
//int A=Integer.parseInt(nyu[0]);
//int B=Integer.parseInt(nyu[1]);
//int C=Integer.parseInt(nyu);



//double A=Double.parseDouble(nyu[0]);
//double B=Double.parseDouble(nyu[1]);
/*
switch(C){
case 7:
case 5:
case 3:
System.out.println("YES") ;
break;
default:
System.out.println("NO") ;

break;
}
*/

//int res=A*B;
//if(res%2==0){

System.out.println(nyu.replace("2017" , "2018"));
//}else{
//System.out.println("Odd");

//}




	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String nyu=sc.nextLine(); nyu sc.nextLine() sc.nextLine sc System.out.println(nyu.replace("2017" , "2018")) System.out.println System.out System System.out nyu.replace("2017" , "2018") nyu.replace nyu "2017" "2018" String[] args args public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
 
 //    String[] nyu=sc.nextLine().split(" ");

     String nyu=sc.nextLine();
//int A=Integer.parseInt(nyu[0]);
//int B=Integer.parseInt(nyu[1]);
//int C=Integer.parseInt(nyu);



//double A=Double.parseDouble(nyu[0]);
//double B=Double.parseDouble(nyu[1]);
/*
switch(C){
case 7:
case 5:
case 3:
System.out.println("YES") ;
break;
default:
System.out.println("NO") ;

break;
}
*/

//int res=A*B;
//if(res%2==0){

System.out.println(nyu.replace("2017" , "2018"));
//}else{
//System.out.println("Odd");

//}




	}
} public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
 
 //    String[] nyu=sc.nextLine().split(" ");

     String nyu=sc.nextLine();
//int A=Integer.parseInt(nyu[0]);
//int B=Integer.parseInt(nyu[1]);
//int C=Integer.parseInt(nyu);



//double A=Double.parseDouble(nyu[0]);
//double B=Double.parseDouble(nyu[1]);
/*
switch(C){
case 7:
case 5:
case 3:
System.out.println("YES") ;
break;
default:
System.out.println("NO") ;

break;
}
*/

//int res=A*B;
//if(res%2==0){

System.out.println(nyu.replace("2017" , "2018"));
//}else{
//System.out.println("Odd");

//}




	}
} Main

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
 
 //    String[] nyu=sc.nextLine().split(" ");

     String nyu=sc.nextLine();
//int A=Integer.parseInt(nyu[0]);
//int B=Integer.parseInt(nyu[1]);
//int C=Integer.parseInt(nyu);



//double A=Double.parseDouble(nyu[0]);
//double B=Double.parseDouble(nyu[1]);
/*
switch(C){
case 7:
case 5:
case 3:
System.out.println("YES") ;
break;
default:
System.out.println("NO") ;

break;
}
*/

//int res=A*B;
//if(res%2==0){

System.out.println(nyu.replace("2017" , "2018"));
//}else{
//System.out.println("Odd");

//}




	}
}