CodeForces #734B Anton And Digits [java]

import java.util.Scanner;

public class AntonAndDigits_734B {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);

		int k2, k3, k5, k6;
		k2 = scan.nextInt();
		k3 = scan.nextInt();
		k5 = scan.nextInt();
		k6 = scan.nextInt();

		// 32, 256
		int a = Math.min(Math.min(k2, k5), k6);
		if (a == k2) {
			System.out.println(a * 256);
		} else {
			int b = Math.min(k2 - a, k3);
			System.out.println(a * 256 + b * 32);
		}
		scan.close();
	}
}