// Chapter 21 example: a simple function that gives back a value.
// Run with: go run exercises/21/01-square.go

package main

import "fmt"

func square(n int) int {
	return n * n
}

func main() {
	fmt.Println(square(5))     // 25
	fmt.Println(square(7))     // 49
	fmt.Println(square(3) + 1) // 10

	// Try this: add a cube function that returns n * n * n, then print cube(3).
}