package main

import "fmt"

func main() {
	a := 3
	t := map[string]int{"a": 1, "b": 2}
	s := []int{4, 5}
	fmt.Println(a, t["b"], s)
	a, t["b"], s[1] = t["b"], s[1], a
	fmt.Println(a, t["b"], s)
}

// Output:
// 3 2 [4 5]
// 2 5 [4 3]