#include <stdio.h>
int main()
{
float a , b ,c ;
scanf("%f %f %f",&a,&b,&c);
float total = (a+b+c);
float gpa = total/3;
printf("%.2f %.2f",total,gpa);
return 0;
}

#include <stdio.h>
int main()
{
float a , b ,c ;
scanf("%f %f %f",&a,&b,&c);
float total = (a+b+c);
float gpa = total/3;
printf("%.2f %.2f",total,gpa);
return 0;
}