import java.util.*;

public class Main {
    public static void main (String[] args){
        Map<Thread,StackTraceElement[]> dico =Thread.getAllStackTraces();
        Set<Map.Entry<Thread,StackTraceElement[]>> tab=dico.entrySet();
        Iterator ite=tab.iterator();
        for (;ite.hasNext();){
            System.out.println(ite.next()+"\n");
        }
    }
}