//ww:run-exit 10
package main;
type pair = struct { a: i64, b: i64 };
fn main() i32 = {
	let s: pair = pair { a = 0i64, b = 0i64 };
	s = pair { a = 4i64, b = 6i64 };
	return (s.a + s.b): i32;
};