Same contrived functional program but in go

funcy.go

package main

import fmt "fmt"

type IntFunc func(int) int
type HiIntFunc func(int) IntFunc

func first(a int) HiIntFunc {
	return func(b int) IntFunc {
		return func(c int) int {
			if c < 4 {
				return c * (b + a)
			} else {
				return first(a)(b)(c-1)
			}
			return 0
		}
	}
}


func main(){
    var n int = 4
    var answer int = 0
    var second HiIntFunc = first(n)
    var third IntFunc = second(n * 2)
    answer = third(n * 3)

    fmt.Printf("%d\n", answer);
}