import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		Integer output = 0;

		Integer coins500 = new Integer(scanner.next());
		Integer coins100 = new Integer(scanner.next());
		Integer coins50 = new Integer(scanner.next());
		Integer total = new Integer(scanner.next());

		for(int i = 0; i<= coins500;i++) {
			for(int j= 0;j<=coins100;j++) {
				for(int k = 0; k <=coins50;k++) {
					if(total == (i*500+j*100+k *50)) {
						output ++ ;
					}
				}
			}
		}
		System.out.println(output);
		scanner.close();
	}
}
/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