[JAVA] 백준 #9498 - 시험 성적 출력

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int score;

        score=sc.nextInt();

        if ( score >=0 && score <= 100) {
            if (score >= 90) {
                System.out.println("A");
            } else if (score >= 80) {
                System.out.println("B");
            } else if (score >= 70) {
                System.out.println("C");
            } else if (score >= 60) {
                System.out.println("D");
            } else {
                System.out.println("F");
            }
        }
    }
}