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

int main()
{
    float grade1;
    float grade2;
    float total;
    float average;
    
    scanf("%f", &grade1);
    scanf("%f", &grade2);
    
    total = grade1 + grade2;
    average = total / 2.0;
    
    printf("The average grade is %f \n", average);
    
    system("PAUSE");
    return 0;    
}