2 400 401 + fn main() {
 0 401 401 |     let a: i128 = 42i128;
 0 401 401 |     let b: u128 = 1337u128;
 0 401 401 |     println!("{} + {} = {}", a, b, (a as u128) + b);
 0 401 400 | }
 1 400 400