/*
#include <stdio.h>
int main()
{
long long int a,b;
scanf("%lld %lld",&a,&b);
printf("%lld",a+b);
return 0;
}
*/
/*
#include<stdio.h>
int main()
{
int a;
scanf("%d", &a);
printf("%d",-a);
return 0;
}
*/
/*
#include<stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a/b);
}
*/
/*
#include<stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a%b);
return 0;
}
*/
/*
#include<stdio.h>
int main()
{
long long int a;
scanf("%lld",&a);
printf("%lld",a+1);
return 0;
}
*/
/*
#include<stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d\n",a+b);
printf("%d\n",a-b);
printf("%d\n",a*b);
printf("%d\n",a/b);
printf("%d\n",a%b);
printf("%.2f\n",(float)a/b);
}
*/
#include<stdio.h>
int main()
{
int a,b,c;
scanf("%d %d %d",&a,&b,&c);
printf("%d\n",(a+b+c));
printf("%.1f",(float)(a+b+c)/3);
return 0;
}