import java.io.*;

public class Ex1{

//Вводим значение n
static void setN(){
    BufferedReader in = new BufferedReader (new InputStreamReader (System.in));
    try{
    System.out.println("Vvedite n");
    String str = in.readLine();
    int n = new Integer(str).intValue();
    }catch (IOException e){System.err.println("error "+e);}

}


public static void main(String[] args){

    setN();
    
}

}