let (a, b, mut c) = ("Pl", "ng", String::new());

	let (a, b) = ("Pl", "ng");

	[(3, "i"), (5, "a"), (7, "o")].iter().for_each(|(d, e)| {
		if n % d == 0 {
			c.push_str(a);
			c.push_str(e);
			c.push_str(b)
		}
	});

	let c =
		[(3, "i"), (5, "a"), (7, "o")]
			.iter()
			.fold(String::with_capacity(15), |mut d, (e, f)| {
				if n % e == 0 {
					d.push_str(a);
					d.push_str(f);
					d.push_str(b);
				}
				d
			});