#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;
}