/*
Grading
*/


#include<stdio.h>
#include<stdlib.h>


int main()
{
    int s1,s2,s3;
    
    printf("Enter the three scores\n");
    scanf("%d %d %d",&s1,&s2,&s3);
    
    float avg;
    
    avg=(double)(s1+s2+s3)/3;
    
    if(avg>=94)
	printf("Grade=A");
    
    if(avg<94 && avg>=90)
    	printf("Grade=A-");
    
    if(avg<90 && avg>=80)
    	printf("Grade=B");
    
    if(avg<80 && avg>=70)
    	printf("Grade=B-");
    
    if(avg<70 && avg>=60)
    	printf("Grade=C");
    
    if(avg<60)
    	printf("Grade=F\n");

    system("pause");
}