gogogo

package main

import "time"
import "math/rand"
import "fmt"

func main() {
    out := make(chan int)

    sleeper := func() {
        interval := rand.Intn(5)
        time.Sleep(time.Duration(interval))
        out <-interval
    }

    rand.NewSource(time.Now().UnixNano())

    c := 5

    for i := 0; i < c; i++ {
        go sleeper()
    }

    for i := 0; i < c; i++ {
        fmt.Println(<-out)
    }

    fmt.Println("OKOK")
}