{"raw_statement":[{"iden":"problem statement","content":"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`.\nAfter 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."},{"iden":"constraints","content":"*   $S$ is a string of length $10$.\n*   The first eight characters in $S$ are `2017/01/`.\n*   The last two characters in $S$ are digits and represent an integer between $1$ and $31$ (inclusive)."},{"iden":"input","content":"Input is given from Standard Input in the following format:\n\n$S$"},{"iden":"sample input 1","content":"2017/01/07"},{"iden":"sample output 1","content":"2018/01/07"},{"iden":"sample input 2","content":"2017/01/31"},{"iden":"sample output 2","content":"2018/01/31"}],"translated_statement":null,"sample_group":[],"show_order":["default"],"formal_statement":null,"simple_statement":null,"has_page_source":true}