import java.io.*;
import java.util.*;

public class Main {

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

        int a = in.nextInt(), b = in.nextInt(), c = in.nextInt(), n = in.nextInt();

        int count = 0;
        for (int i = 0; i <= a; i++) {
            int x = 500 * i;
            for (int j = 0; j <= b; j++) {
                int y = 100 * j;
                if (n - x - y >= 0 && (n - x - y) % 50 == 0 && (n - x - y) / 50 <= c)
                    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