#include <iostream>
#include <queue>
using namespace std;

int main()

#include <iostream>

using namespace std;

class Student {

#include <iostream>
#include <queue>
#include <vector>
using namespace std;

#include <iostream>
#include <queue>
using namespace std;

int main() {

#include <iostream>

using namespace std;

class Dropka{

#include <iostream>

using namespace std;

class Dropka{

/* Hide Category Label in Module 22 */
.jeg_postblock_22 .jeg_post_category {
display:none;
}

#include <stdio.h>
#include <math.h>
#include <complex.h>

int main(int argc, const char * argv[]) {

import java.io.*;
public class Main {

public static void main(String[] args) throws IOException{
FileInputStream in = new FileInputStream("in.txt");

import java.io.*;
public class Main {

public static void main(String[] args) {
FileInputStream in = null;