import java.util.*;

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;
	for(int i = 0; i <= A; i ++) {
	    for(int j = 0; j <= B; j++) {
		int k = (X - i * 500 - j * 100) / 50;
		if(k >= 0 && k <= C) {
		    cnt ++;
		}
	    }
	}
	    
	System.out.println(cnt);
    }
} import java.util.*; util.* java 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;
	for(int i = 0; i <= A; i ++) {
	    for(int j = 0; j <= B; j++) {
		int k = (X - i * 500 - j * 100) / 50;
		if(k >= 0 && k <= C) {
		    cnt ++;
		}
	    }
	}
	    
	System.out.println(cnt);
    }
} 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;
	for(int i = 0; i <= A; i ++) {
	    for(int j = 0; j <= B; j++) {
		int k = (X - i * 500 - j * 100) / 50;
		if(k >= 0 && k <= C) {
		    cnt ++;
		}
	    }
	}
	    
	System.out.println(cnt);
    } main {
	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;
	for(int i = 0; i <= A; i ++) {
	    for(int j = 0; j <= B; j++) {
		int k = (X - i * 500 - j * 100) / 50;
		if(k >= 0 && k <= C) {
		    cnt ++;
		}
	    }
	}
	    
	System.out.println(cnt);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int A = sc.nextInt(); A sc.nextInt() sc.nextInt sc int B = sc.nextInt(); B sc.nextInt() sc.nextInt sc int C = sc.nextInt(); C sc.nextInt() sc.nextInt sc int X = sc.nextInt(); X sc.nextInt() sc.nextInt sc int cnt = 0; cnt 0 for(int i = 0; i <= A; i ++) {
	    for(int j = 0; j <= B; j++) {
		int k = (X - i * 500 - j * 100) / 50;
		if(k >= 0 && k <= C) {
		    cnt ++;
		}
	    }
	} int i = 0; int i = 0; i 0 i <= A i A i ++ i ++ i {
	    for(int j = 0; j <= B; j++) {
		int k = (X - i * 500 - j * 100) / 50;
		if(k >= 0 && k <= C) {
		    cnt ++;
		}
	    }
	} {
	    for(int j = 0; j <= B; j++) {
		int k = (X - i * 500 - j * 100) / 50;
		if(k >= 0 && k <= C) {
		    cnt ++;
		}
	    }
	} for(int j = 0; j <= B; j++) {
		int k = (X - i * 500 - j * 100) / 50;
		if(k >= 0 && k <= C) {
		    cnt ++;
		}
	    } int j = 0; int j = 0; j 0 j <= B j B j++ j++ j {
		int k = (X - i * 500 - j * 100) / 50;
		if(k >= 0 && k <= C) {
		    cnt ++;
		}
	    } {
		int k = (X - i * 500 - j * 100) / 50;
		if(k >= 0 && k <= C) {
		    cnt ++;
		}
	    } int k = (X - i * 500 - j * 100) / 50; k (X - i * 500 - j * 100) / 50 (X - i * 500 - j * 100) X - i * 500 - j * 100 X i * 500 i 500 j * 100 j 100 50 if(k >= 0 && k <= C) {
		    cnt ++;
		} k >= 0 && k <= C k >= 0 k 0 k <= C k C {
		    cnt ++;
		} cnt ++ cnt System.out.println(cnt) System.out.println System.out System System.out cnt String[] args args
import java.util.*;

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;
	for(int i = 0; i <= A; i ++) {
	    for(int j = 0; j <= B; j++) {
		int k = (X - i * 500 - j * 100) / 50;
		if(k >= 0 && k <= C) {
		    cnt ++;
		}
	    }
	}
	    
	System.out.println(cnt);
    }
}
