public static void FileIO(String filename){

    FileInputStream fis = null;

    try {

        fis = new FileInputStream(filename+".in");

    } catch (FileNotFoundException e) {

        // TODO Auto-generated catch block

        e.printStackTrace();

    }

    System.setIn(fis);

    PrintStream ps = null;

    try {

        ps = new PrintStream(new FileOutputStream(filename+".out"));

    } catch (FileNotFoundException e) {

        // TODO Auto-generated catch block

        e.printStackTrace();

    }

    System.setOut(ps);

}

import java.io.*;

import java.util.*;

import java.math.*;

public class Main {

    public static void solve(Scanner cin,PrintStream cout){

        while(cin.hasNext()){

            int n=cin.nextInt();

            cout.print(n);

        }

    }

    public static void main(String[] args) {

        //setFileIO("D://test");

        Scanner cin=new Scanner(System.in);

        PrintStream cout=new PrintStream(System.out);

        solve(cin,cout);

        cin.close();

        cout.close();

    }

    public static void FileIO(String filename){

        FileInputStream fis = null;

        try {

            fis = new FileInputStream(filename+".in");

        } catch (FileNotFoundException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        System.setIn(fis);

        PrintStream ps = null;

        try {

            ps = new PrintStream(new FileOutputStream(filename+".out"));

        } catch (FileNotFoundException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        System.setOut(ps);

    }

}