#include<stdio.h>
main()
{
float avg, grade1, grade2, grade3;/*assignments can be part of declarations*/

printf("\n");
grade1 = 87.6;
grade2 = 94.8;
grade3 = 74.5;
avg = (grade1 + grade2 + grade3) / 3.0;
printf("the average is %.1f", avg);
printf("\n");/*makes extra line in output screen*/
return;
}