import java.util.Scanner;

public class Main {

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

		int[] inputNumbers = new int[4];
		for (int i = 0; i < 4; i++) {
			inputNumbers[i] = Integer.parseInt(sc.nextLine());
		}

		int count = 0;
		for (int i = 0; i <= inputNumbers[0]; i++) {
			for (int j = 0; j <= inputNumbers[1]; j++) {
				for (int k = 0; k <= inputNumbers[2]; k++) {
					if (inputNumbers[3] == 500 * i + 100 * j + 50 * k) {
						count++;
					}
				}
			}
		}
		System.out.println(count);

	}
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz