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.

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.

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).

Sample Input 1

2017/01/07

Sample Output 1

2018/01/07

Sample Input 2

2017/01/31

Sample Output 2

2018/01/31

见题面 Input 部分

见题面 Output 部分