Problem:
Score : 100 points

Problem Statement

On some day in January 2018, Takaki is writing a document. The document has a column where the current date is written in yyyy/mm/dd format. For example, January 23, 2018 should be written as 2018/01/23.

After finishing the document, she noticed that she had mistakenly wrote 2017 at the beginning of the date column. Write a program that, when the string that Takaki wrote in the date column, S, is given as input, modifies the first four characters in S to 2018 and prints it.

Constraints

S is a string of length 10.

The first eight characters in S are 2017/01/.

The last two characters in S are digits and represent an integer between 1 and 31 (inclusive).

Input

Input is given from Standard Input in the following format:

S

Output

Replace the first four characters in S with 2018 and print it.

Sample Input 1

2017/01/07

Sample Output 1

2018/01/07

Sample Input 2

2017/01/31

Sample Output 2

2018/01/31

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Runtime Error)

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int Y = sc.nextInt();
		for(int a=0;a<=N;a++) {
			if(a*10000>Y) {
				break;
			}
			for(int b=0;b<=N;b++) {
				if((a*10000)+(b*5000)>Y) {
					break;
				}
					for(int c=0;c<=N;c++) {
						int sum = (10000*a)+(5000*b)+(1000*c);
						if(sum==Y&&a+b+c==N) {
							System.out.println(a+" "+b+" "+c);
							System.exit(0);
					}
			}
		}
	}
		System.out.print("-1 "+"-1 "+"-1");
}
}