
import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();
		int x = sc.nextInt();
		int cnt = 0;
		int z;
		for (int i = 0; i <= a; i++) {
			z = x - 500 * i;
			// x -= 500*i;
			for (int j = 0; j <= b; j++) {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			}
		}
		System.out.println(cnt);
	}
}
/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