[code]
foreign fn putchar(c: i32) -> i32;

struct Rect {
    width: i32,
    height: i32
}

fn modify_rect(r: *Rect) {
    let temp: Rect = *r;
    temp.width = temp.width + 10;
    temp.height = temp.height + 20;
    *r = temp;
}

fn print_num(n: i32) {
    putchar(48 + (n / 10));
    putchar(48 + (n % 10));
    putchar(10);
}

fn main() -> i32 {
    let r = Rect { width: 15, height: 25 };
    
    modify_rect(&r);
    
    print_num(r.width);
    print_num(r.height);
    
    return 0;
}

[expected_return_code]
0

[expected_output]
25
45