#include <QtCore>

class Thread : public QThread
{
public:
    Thread(int m) : m(m) {}

protected:
    virtual void run()
    {
        sleep(m);
        qDebug() << m;
    }

private:
    int m;
};

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    QList<Thread *> list;

    foreach (const QString &s, a.arguments()) {
        bool ok;
        int n = s.toInt(&ok);
        if (ok) {
            Thread *t = new Thread(n);
            t->start();
            list << t;
        }
    }

    foreach (Thread *t, list)
        t->wait();

    qDeleteAll(list);
    return 0;
}