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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).

Sample Input 1

2017/01/07

Sample Output 1

2018/01/07

Sample Input 2

2017/01/31

Sample Output 2

2018/01/31