# include <stdio.h>

double MEAN(double num1, double num2){
	double average;

	average = (num1 + num2) / 2.0;

	return average;
}


void main(void){
	double num1,num2,average;

	num1 = 5.0;
	num2 = 7.0;

	average = MEAN(num1,num2);

	printf("Average is %f\n",average);

}