package main

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

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

	fmt.Print("Height in metres (e.g. 1.78): ")
	text, _ := reader.ReadString('\n')
	height, _ := strconv.ParseFloat(strings.TrimSpace(text), 64)

	fmt.Print("Weight in kg (e.g. 72.5):     ")
	text, _ = reader.ReadString('\n')
	weight, _ := strconv.ParseFloat(strings.TrimSpace(text), 64)

	bmi := weight / (height * height)
	fmt.Printf("BMI: %.1f\n", bmi)
}