goal.go

package main

import "strings"
import "fmt"

var lol string

type g_func func(...string) g_func

func (gf g_func) String() string {
    return lol
}

func g(args ...string) g_func{
    if len(args) > 0 && args[len(args) - 1] == "al" {
        lol = "g" + strings.Join(args, "")
        return func(new_args ...string) g_func {
            return nil
        }
    } else {
        return func(new_args ...string) g_func{
            return g(append(append(args, "o"), new_args...)...)
        }
    }
}

func main() {
    fmt.Println(g()("al"))
    fmt.Println(g()()("al"))
    fmt.Println(g()()()("al"))
}