package main

import "fmt"

func main() {
	add := func(arr []int) int {
		if arr == nil {
			return 0
		}
		result := 0
		for _, v := range arr {
			result += v
		}
		return result
	}

	myArr := []int{3, 4, 7, 1, 7, 4, 8}

	result := add(myArr)

	result1 := func(arr []int) int {
		if arr == nil {
			return 0
		}
		result := 0
		for _, v := range arr {
			result += v
		}
		return result
	}(myArr)

	fmt.Println(result)
	fmt.Println(result1)
}