#include<stdio.h>
int main()
{

    int num=0;
    int aCount=0, bCount=0, cCount=0, dCount=0, fCount=0;

    while(true){
		printf("\nInput Score :");
		scanf("%d", &num);
		if(num<=0){
			printf("\nTotals for each letter grade are:\n");
			printf("A= %d\t", aCount);
			printf("B= %d\t", bCount);
			printf("C= %d\t", cCount);
			printf("D= %d\t", dCount);
			printf("E= %d\t", fCount);
			return 0;
		}
		if(num>10)printf("Sorry, Max Score 10\n");
        else{
		   switch(num)
			{
				case 10:
				case 9:
					printf("\n====================");
					printf("\nYou Got A Grade.");
					printf("\n====================");
					++aCount;
					break;
				case 8:
				case 7:
					printf("\n====================");
					printf("\nYou Got B Grade.");
					printf("\n====================");
					++bCount;
					break;
				case 6:
					printf("\n====================");
					printf("\nYou Got C Grade.");
					printf("\n====================");
					++cCount;
					break;
				case 5:
				case 4:
					printf("\n====================");
					printf("\nYou Got D Grade.");
					printf("\n====================");
					++dCount;
					break;

				default:
					printf("\nYou Got E Grade.");
					++fCount;
					break;

				}
		}
	}

    return 0;
}