Darts Tournament

package main

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

func main() {
    var startPoints, points, moves int
    fmt.Scanln(&startPoints)

    scanner := bufio.NewScanner(os.Stdin)

    var command string

    for startPoints > 0 {
        moves ++
        scanner.Scan()
        command = scanner.Text()
        if command == "bullseye" {
            break
        }
        scanner.Scan()
        points, _ = strconv.Atoi(scanner.Text())
        if command == "double ring" {
            points *= 2
        } else if command == "triple ring" {
            points *= 3
        }
        startPoints -= points
    }

    if startPoints == 0 {
        fmt.Printf("Congratulations! You won the game in %d moves!", moves)
    } else if startPoints < 0 {
        fmt.Printf("Sorry, you lost. Score difference: %d.", startPoints * -1)
    } else {
        fmt.Printf("Congratulations! You won the game with a bullseye in %d moves!", moves)
    }
}