#include <stdio.h>
int main(void) {
int outcome;
char grades;
printf("결과 점수를 입력하세요(0~100): ");
scanf("%d", &outcome);
if (outcome <=100 && outcome >= 90) {
grades = 'A';
}
else if (outcome >= 80) {
grades = 'B';
}
else if (outcome >= 70) {
grades = 'C';
}
else if (outcome >= 60) {
grades = 'D';
}
else {
grades = 'F';
}
printf("학점은: %c\n", grades);
return 0;
}