import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.Scanner;
public class Main {
	public static void main(String[] args)throws FileNotFoundException  
	{
		
		FileInputStream fis = new FileInputStream("input.txt");
		System.setIn(fis);
		
		PrintStream ps = new PrintStream(new FileOutputStream("output.txt"));
		System.setOut(ps);
		
		Scanner cin=new Scanner(System.in);
		int n;
		
		while(cin.hasNext())
		{
			n=cin.nextInt();
			System.out.println(n);
		}
	}

}