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 C++14 (GCC 5.4.1) (judge verdict: Accepted)

/**
 * code generated by JHelper
 * More info: https://github.com/AlexeyDmitriev/JHelper
 * @author HARSHAD
 */

#include <bits/stdc++.h>
#define f(i,n) for(int i=0;i<n;i++)
#define rep(i,a,b) for(int i=a;i<=b;i++)
using namespace std;
typedef vector<int> vi;
typedef long long int ll;
vector<vector<int>> adj;

class A {
public:
	void solve(std::istream& in, std::ostream& out) {
		string s; in>>s;
		s[3]='8';
		out<<s;

	}
    void inG(int m, istream& in){ int u,v; adj = vector<vi>(200005);f(i, m){ in>>u>>v; adj[u].push_back(v); adj[v].push_back(u); }}
};


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
	A solver;
	std::istream& in(std::cin);
	std::ostream& out(std::cout);
	solver.solve(in, out);
	return 0;
}