04. Transport Price

package main
import "fmt"

func main() {
    var km int
    fmt.Scanln(&km)

    var time string
    fmt.Scanln(&time)

    var price = 0.0

    if (km < 20) {
        if (time == "day") {
            price = float64(km) * 0.79 + 0.70
        } else {
            price = float64(km) * 0.90 + 0.70
        }
    } else if (km >= 100) {
        price = float64(km) * 0.06
    } else {
        price = float64(km) * 0.09
    }

    fmt.Printf("%.2f\n",  price)
}