#include <iostream>

using namespace std;

int random_in_range(int a, int b)
{ int r = random();
  int range = b - a + 1;
  return a + r % range; }

int average(int Array[], int size)
{ int sum = 0;
  for (int i = 0; i < size; i += 1)
    sum += Array[i];
  return sum/size; }

int main()
{ int A[50];
  srandomdev();
  for (int i = 0; i < 50; i += 1)
  { A[i] = random_in_range(100, 999);
    cout << A[i] << " "; }
  cout << "\naverage is " << average(A, 50) << "\n";
  cout << "\n"; }