#include "stdio.h"
int _tmain(int argc, _TCHAR* argv[])
{
char s[100];
printf("Input grade:");
scanf("%s", s);
if (s[0] >= 'A' && s[0] <= 'Z') s[0] += 32;
int x = s[1] == '+' ? 1 : (s[1] == '-' ? -1 : (s[1] == '\0' ? 0 : 9999));
if (s[1] != '\0' && s[2] != '\0') x += 9999;
x += (s[0] - 'a') * 3;
int score = 9999;
if (x == -1) score = 85;
if (x == 0) score = 90;
if (x == 1) score = 100;
if (x == 2) score = 70;
if (x == 3) score = 75;
if (x == 4) score = 80;
if (x == 6) score = 60;
if (x == 9) score = 50;
if (score == 50) printf("<60\n");
if (score > 100) printf("Input Error!\n");
if (score >= 60 && score <= 100) printf("%d\n", score);
return 0;
}
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