03. Speed Info

import java.util.Scanner;

public class SpeedInfo {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);

        double A = Double.parseDouble(scanner.nextLine());

        if (A<=10){
            System.out.println("slow");
        }else if(A<=50){
            System.out.println("average");
        }else if(A<=150){
            System.out.println("fast");
        }else if(A<=1000){
            System.out.println("ultra fast");
        }else{
            System.out.println("extremely fast");
        }
    }
}