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) {
		//お年玉問題
		Scanner scan = new Scanner(System.in);
		int n=scan.nextInt();
		int y=scan.nextInt();
		int value[]= {10000,5000,1000};
		int cnt[]= {-1,-1,-1};
		scan.close();
		int flg=0;
		for(int i=0;i<=n;i++) {
			for(int j=0;j<=n;j++) {
				if(n-i-j>=0) {
					if(value[0]*i+value[1]*j+value[2]*(n-i-j)==y) {
						flg=1;
						cnt[0]=i;
						cnt[1]=j;
						cnt[2]=n-i-j;
						break;
					}
				}
			}
			if(flg==1)break;
		}

		System.out.println(cnt[0]+" "+cnt[1]+" "+cnt[2]);
	}

}