package main

import "fmt"

func main() {
 for i := 0; i < 3; i++ {
  defer fmt.Println(i)
 }

 for i := 0; i < 3; i++ {
  defer func() {
   fmt.Println(i)
  }()
 }

 for i := 0; i < 3; i++ {
  i := i
  defer func() {
   fmt.Println(i)
  }()
 }
}