void main(void)
{
int result;
int i = 0;
clrscr();
for(; i<3;i++)
{
printf("\n\aEnter marks:");
scanf("%d",&result);


if (result >= 75)
	printf("Passed: Grade A\n");
else if (result >= 60)
	printf("Passed: Grade B\n");
else if (result >= 45)
	printf("Passed: Grade C\n");
else
	printf("Failed\n");

} /* for() ending bracket */

	}                   /* main() ending bracket */