#pragma warning(disable:4996)
#include <stdio.h>
int main()
{
int score;
char grade;
printf("학생의 점수를 입력하세요: ");
scanf("%d", &score);
grade = (score >= 90)? 'A':
(score >= 80) ? 'B':
(score >= 70) ? 'C':
(score >= 60) ? 'D':'F';
printf("학점: %c\n", grade);
return 0;
}