#include<stdio.h>
#include<conio.h>
main()
{
clrscr();
int a,b,c;
float avg;
char name[20];
printf("(E)nter The Name:- ");
gets(name);
printf("(E)nter Three Marks:- ");
scanf("%d %d %d",&a,&b,&c);
avg=(a+b+c)/3;
printf("%s ",name);
printf("Got This Average ");
printf("%f\n",avg);
if(avg>=90)
printf("His Grade IS (A)");
if(avg>=80&&avg<90)
printf("His Grade Is (B)");
if(avg>=70&&avg<80)
printf("His Grade Is (c)");
if(avg>=60&&avg<70)
printf("His Grade Is (D)");
if(avg<60)
printf("His Grade Is (F)");

getch();

}