fn main()
{
  let mut v: [i32; 10] = [0; 10];
  //let mut v: [i32; 10];

  println!("{}",  v[9]);
  println!("{}", v[10]);
  v[9] = 1; v[10] = 666;
  println!("{}",  v[9]);
  println!("{}", v[10]);
}