Retrieving data from a channel with delay and time limit

Determine which messages will appear in the program output, considering the channel operation, pauses between sends, and the timeout trigger in the select statement.

func main() {
  ch := make(chan int)
  go func() {
    for i := 0; i < 5; i++ {
      ch <- i
      time.Sleep(time.Second)
    }
    close(ch)
  }()

  for {
    select {
    case v := <-ch:
      fmt.Println(v)
    case <-time.After(3 * time.Second):
      fmt.Println("timeout")
      break
    }
  }
}