// Arithmetic, function calls and imports!

struct Test {
  field: i32,
  second: [u32; 4]
}

fn test() -> Test {
  let value = Test {
    field: 5,
    second: [6, 3, 4, 8],
  };
  return value;
}

fn main() -> u32 {
  let mut value = test();

  let mut a = value.second;

  a[2] = 15;


  return value.second[2];
}