medmek

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

medmek

import java.io.*;
import java.util.*;

class Node {
	int data;
	Node next;
	Node(int d) {
        data = d;
        next = null;
    }