07. Fuel Tank

package main
import (
    "fmt"
    "strings"
)

func main() {
    var fuel string
    fmt.Scanln(&fuel)

    var liters float64
    fmt.Scanln(&liters)

    if (fuel == "Diesel" || fuel == "Gasoline" || fuel == "Gas") {
        if (liters >= 25) {
            fmt.Printf("You have enough %s.\n", strings.ToLower(fuel))
        } else {
            fmt.Printf("Fill your tank with %s!\n", strings.ToLower(fuel))
        }
    } else {
        fmt.Println("Invalid fuel!")
    }
}