import java.util.*;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int int500 = sc.nextInt();
		int int100 = sc.nextInt();
		int int50 = sc.nextInt();
		int total = sc.nextInt();
		int count= 0;
		for(int a = 0 ; a <= int500 ;a++) {
			for(int b = 0 ; b <= int100;b++) {
				for(int c = 0; c <= int50;c++) {
					int sum = a*500 + b*100 + c*50;
					if(sum == total)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