boiler.java

import java.util.*;
import java.io.*;
class Main{
    static class FastReader
  {
    BufferedReader br;
    StringTokenizer st;
    public FastReader()
    {
      br = new BufferedReader(new InputStreamReader(System.in));
    }
    String next()
    {
      while (st == null || !st.hasMoreElements()){
        try { st = new StringTokenizer(br.readLine()); }
        catch (IOException e) { e.printStackTrace(); }
      }
      return st.nextToken();
    }
    int nextInt() { return Integer.parseInt(next()); }
    long nextLong() { return Long.parseLong(next()); }
    double nextDouble(){ return Double.parseDouble(next()); }
    String nextLine(){
      String str = "";
      try { str = br.readLine(); }
      catch (IOException e) { e.printStackTrace(); }
      return str;
    }
  }
  public static void main(String[] args){
  }
}
















// 6 3
// 1 2 3 4 5 6

//    Scanner sc = new Scanner(System.in);
//       int n = sc.nextInt();
//       int k = sc.nextInt();
//       int[] a = new int[n];
      
//       for(int i=0;i<n;i++){
//           a[i] = sc.nextInt();
//       }
//       call(a,n,k);