package main

import (
    "log"
    "test/a"
    "test/b"
    "test/greet"
)

type Who struct {
    to string
}

func (w Who) Say() string {
    return w.to
}

func main() {
    log.Println("Testing...")

    a := a.Formal{}
    b := b.Casual{}


    w := &Who{
        to:"world",
    }

    log.Println(greet.Greet(a, w))
    log.Println(greet.Greet(b, w))
}