package main
import "fmt"
func main() {
var score int
fmt.Println("Score?")
fmt.Scanf("%d", &score)
switch score {
case 0:
fmt.Println("Fail!")
case 1:
fmt.Println("C!")
case 2:
fmt.Println("B!")
case 3, 4, 5:
fmt.Println("A!")
default:
fmt.Println("Invalid score!")
}
}