package main

import (
	"fmt"
	"log"
	"os"
	"strconv"
	"time"
)

func main() {
	wait := 1
	if len(os.Args) > 1 {
		wait = Atoi(os.Args[1])
	}
	time.Sleep(time.Minute * time.Duration(wait))
	fmt.Println("Done waiting")
}

func Atoi(i string) int {
	var ret int
	var err error
	if ret, err = strconv.Atoi(i); err != nil {
		log.Fatal("Invalid Atoi")
	}
	return ret
}