fn main() {
    fn our_to_u32(n: i32) -> u32 {
        let n = (n << 1) as u32;
        n >> 1
    }

    println!("{}", our_to_u32(i32::min_value()));
    println!("{}", our_to_u32(i32::max_value()));
    assert_eq!(u32::max_value(), our_to_u32(i32::max_value()));
    assert_eq!(0, our_to_u32(i32::min_value()));
    println!("{}", our_to_u32(1));
}