#include <stdio.h>
#include <stdlib.h>
/**
 * @brief Function for demonstration static local variables
 */
void test_static() {
  static int static_var;
  static_var += 1;
  printf("%d\n", static_var);
}

int main() {
  test_static();
  test_static();
  test_static();
  test_static();
  exit(0);
}