import io:*
import os:*
import thread:*

fun main(): int {
    var a = 1337
    println("hello from main first");
    var t = run(fun(l: int) {
        print("hello from thread first ")
        println(a+l)
        system("sleep 2")
        print("hello from thread second ")
        println(a+l)
    }, 10)
    system("sleep 1")
    println("hello from main middle");
    join(t)
    println("hello from main after join");
    return 0
}