>>835
#include <stdio.h>
#include <math.h>

#define MAX_COUNT 1000

double average(double values[], int count);
double stdevp(double values[], int count);

int main(int argc, char *argv) {
  
  int count = 0;
  double values[MAX_COUNT];
  
  while (fscanf(stdin, "%lf", &values[count]) != EOF) {
    count++;
    if (count == MAX_COUNT) {
      break;
    }
  }
  
  printf("Average = %lf\n", average(values, count));
  printf("Std.Dev. = %lf\n", stdevp(values, count));
  
  return 0;
}