what the fuck

main.go

package main

import (
	"fmt"
	"io/ioutil"
	"os"
	"regexp"
)

func main() {
	bytes, err := ioutil.ReadAll(os.Stdin)
	if err != nil {
		panic(err)
	}
	a := regexp.MustCompile(`\s+`)
	words := a.Split(string(bytes), -1)
	for _, word := range words {
		if len(word) <= 0 {
			continue
		}
		fmt.Printf("%s ", kubeify(word))
	}
	fmt.Println()
}

func kubeify(word string) string {
	runeified := []rune(word)
	length := len(runeified)

	if length < 3 {
		return word
	}

	return fmt.Sprintf("%s%d%s", string(runeified[0]), length-2, string(runeified[len(runeified)-1]))
}