#include <iostream>


double abs(double a) {
  return (a > 0) ? a : -a;
}

double sqrt(int arg) {
  double low = 0;
  double mid = double(arg) / 2.0;
  double high = arg;
  while (abs(mid * mid - arg) > 1.0e-5) {
    // std::cout << arg - mid * mid << ' ' << low << ' ' << high << '\n';
    if (mid * mid < arg) {
      low = mid;
    } else {
      high = mid;
    }
    mid = (high + low) / 2.0;
  }
  return mid;
}

int main() {
  int radius;
  std::cout << "Radius: ";
  std::cin >> radius;
  for (int i = 0; i <= 2 * radius; ++i) {
    for (int j = 0; j <= 2 * radius; ++j) {
      double x_hand = abs(j - radius); // горизонатльный катет
      double y_hand = abs(i - radius); // вертикальный катет
      std::cout << ((y_hand > sqrt(radius * radius - x_hand * x_hand)) ? " " : "#");
    }
    std::cout << '\n';
  }
}