The program executes 100 jobs in 4 threads. Each job waits for a random number of milliseconds between 1 and 1000.
Ritheann an ríomhchlár 100 jab i 4 shnáithe. Fanann gach jab ar feadh tréimhse randamach, idir 1 mhilleasoicind agus 1000 milleasoicind.