import java.util.*;

public class Main{
	public static void main(String arga[]){
		
		Scanner sc = new Scanner(System.in);
		
		int X =sc.nextInt();
		int Y =sc.nextInt();
		int Z =sc.nextInt();
		int N =sc.nextInt();
		int count=0;
		
		
		for(int i=0;i<=X;i++){
			
			for(int j=0; j<=Y;j++){
				
				for(int k=0; k<=Z;k++){
					
				if(N==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