
import java.util.Scanner;

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;
		int z;
		for (int i = 0; i <= a; i++) {
			z = x - 500 * i;
			// x -= 500*i;
			for (int j = 0; j <= b; j++) {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			}
		}
		System.out.println(cnt);
	}
} import java.util.Scanner; Scanner 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;
		int z;
		for (int i = 0; i <= a; i++) {
			z = x - 500 * i;
			// x -= 500*i;
			for (int j = 0; j <= b; j++) {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			}
		}
		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;
		int z;
		for (int i = 0; i <= a; i++) {
			z = x - 500 * i;
			// x -= 500*i;
			for (int j = 0; j <= b; j++) {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			}
		}
		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;
		int z;
		for (int i = 0; i <= a; i++) {
			z = x - 500 * i;
			// x -= 500*i;
			for (int j = 0; j <= b; j++) {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			}
		}
		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 int z; z for (int i = 0; i <= a; i++) {
			z = x - 500 * i;
			// x -= 500*i;
			for (int j = 0; j <= b; j++) {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			}
		} int i = 0; int i = 0; i 0 i <= a i a i++ i++ i {
			z = x - 500 * i;
			// x -= 500*i;
			for (int j = 0; j <= b; j++) {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			}
		} {
			z = x - 500 * i;
			// x -= 500*i;
			for (int j = 0; j <= b; j++) {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			}
		} z = x - 500 * i z x - 500 * i x 500 * i 500 i for (int j = 0; j <= b; j++) {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			} int j = 0; int j = 0; j 0 j <= b j b j++ j++ j {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			} {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			} z -= 100 * j z 100 * j 100 j for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				} int k = 0; int k = 0; k 0 k <= c k c k++ k++ k {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				} {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				} z = z - 50 * k z z - 50 * k z 50 * k 50 k if (z == 0) {
						cnt++;
					} z == 0 z 0 {
						cnt++;
					} cnt++ cnt z = z + 50 * k z z + 50 * k z 50 * k 50 k z += 100 * j z 100 * j 100 j System.out.println(cnt) System.out.println System.out System System.out cnt String[] args args

import java.util.Scanner;

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;
		int z;
		for (int i = 0; i <= a; i++) {
			z = x - 500 * i;
			// x -= 500*i;
			for (int j = 0; j <= b; j++) {
				z -= 100 * j;
				for (int k = 0; k <= c; k++) {
					// z -= 50*k;
					z = z - 50 * k;
					if (z == 0) {
						cnt++;
					}
					z = z + 50 * k;
				}
				z += 100 * j;
			}
		}
		System.out.println(cnt);
	}
}