package main

import (
	"flag"
	"fmt"
)

func main() {
	var greeting string
	var greetee string

	flag.StringVar(&greeting, "greeting", "hello", "what greeing to use?")
	flag.StringVar(&greetee, "greetee", "world", "who should be greeted?")

	flag.Parse()
	fmt.Println(greeting + ",", greetee)
}