#include <stdio.h>
#include <string.h>


int main()
{
   int i = 0, j = 0;
   long d;
   double sum = 0;

   while (scanf("%ld", &d) != EOF)
   {
      if (d < 0)
      {
         i++;
      }
      else
      {
         j++;
         sum += d;
      }
   }

   if (j > 0)
   {
      printf("%d\n%.1f", i, sum / j);
   }
   else
   {
      printf("%d\n0.0", i);
   }

   return 0;
}