// Chapter 15 example: read a whole number with strconv.Atoi.
// Run with: go run exercises/15/03-read-number.go

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func main() {
	reader := bufio.NewReader(os.Stdin)

	fmt.Print("Enter a number: ")
	text, _ := reader.ReadString('\n')
	number, _ := strconv.Atoi(strings.TrimSpace(text))

	fmt.Printf("Twice that is %d\n", number*2)
}