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 PHP (5.6.30) (judge verdict: Wrong Answer)

<?php

//未完成

fscanf(STDIN, "%d %d ", $number, $money);
$count10000 = 0;
$count5000 = 0;
$count1000 = 0;

while($money >= 10000){
    $money -= 10000;
    $count10000 += 1;
}

while($money >= 5000){
    $money -= 5000;
    $count5000 += 1;
}

while($money >= 1000){
    $money -= 1000;
    $count1000 += 1;
}

if($number == $count10000 + $count5000 + $count1000){
    echo($count10000." ".$count5000." ".$count1000);
}else{
    echo("-1 -1 -1");
}

?>