package main

import (
	"fmt"
	"sort"
)

type myIntMap map[int]string

func (m myIntMap) sort() (index []int) {
	for k, _ := range m {
		index = append(index, k)
	}
	sort.Ints(index)
	return
}

type myStringMap map[string]string

func (m myStringMap) sort() (index []string) {
	for k, _ := range m {
		index = append(index, k)
	}
	sort.Strings(index)
	return
}

func main() {
	mim := myIntMap{
		1:  "one",
		11: "eleven",
		3:  "three",
	}
	for _, k := range mim.sort() {
		fmt.Println(mim[k])
	}
	msm := myStringMap{
		"b": "two",
		"s": "twenty",
		"e": "five",
	}

	for _, k := range msm.sort() {
		fmt.Println(msm[k])
	}

}