import java.io.*;
import java.util.*;

public class sajatForraskodKozNelkul {
    public static void main (String [] args){

        try {
            BufferedReader file = new BufferedReader(new FileReader("sajatForraskodKozNelkul.java"));
            for(String line=file.readLine(); line!=null; line=file.readLine()){
                StringTokenizer sor = new StringTokenizer(line, " ");
                while(sor.hasMoreTokens()){
                    StringTokenizer ujSor = new StringTokenizer(sor.nextToken(), "  ");
                    while(ujSor.hasMoreTokens()){
                        System.out.print(ujSor.nextToken());
                    }
                }
                System.out.println();
            }
            file.close();
        } catch(IOException e){}

    }
}