import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		StringBuffer sb = new StringBuffer(S);
		sb.insert(3, 8);
		sb.deleteCharAt(4);
		String ans = sb.toString();
		System.out.println(ans);
		sc.close();
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		StringBuffer sb = new StringBuffer(S);
		sb.insert(3, 8);
		sb.deleteCharAt(4);
		String ans = sb.toString();
		System.out.println(ans);
		sc.close();
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		StringBuffer sb = new StringBuffer(S);
		sb.insert(3, 8);
		sb.deleteCharAt(4);
		String ans = sb.toString();
		System.out.println(ans);
		sc.close();
	} main {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		StringBuffer sb = new StringBuffer(S);
		sb.insert(3, 8);
		sb.deleteCharAt(4);
		String ans = sb.toString();
		System.out.println(ans);
		sc.close();
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String S = sc.next(); S sc.next() sc.next sc StringBuffer sb = new StringBuffer(S); sb new StringBuffer(S) sb.insert(3, 8) sb.insert sb 3 8 sb.deleteCharAt(4) sb.deleteCharAt sb 4 String ans = sb.toString(); ans sb.toString() sb.toString sb System.out.println(ans) System.out.println System.out System System.out ans sc.close() sc.close sc String[] args args public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		StringBuffer sb = new StringBuffer(S);
		sb.insert(3, 8);
		sb.deleteCharAt(4);
		String ans = sb.toString();
		System.out.println(ans);
		sc.close();
	}
} public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		StringBuffer sb = new StringBuffer(S);
		sb.insert(3, 8);
		sb.deleteCharAt(4);
		String ans = sb.toString();
		System.out.println(ans);
		sc.close();
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		StringBuffer sb = new StringBuffer(S);
		sb.insert(3, 8);
		sb.deleteCharAt(4);
		String ans = sb.toString();
		System.out.println(ans);
		sc.close();
	}
}
