
import java.util.*;

public class Main {
  public static void main(String[] args) {
    @SuppressWarnings("resource")
    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++) {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      }
    }
    System.out.println(cnt);
  }
} import java.util.*; util.* java public class Main {
  public static void main(String[] args) {
    @SuppressWarnings("resource")
    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++) {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      }
    }
    System.out.println(cnt);
  }
} Main public static void main(String[] args) {
    @SuppressWarnings("resource")
    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++) {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      }
    }
    System.out.println(cnt);
  } main {
    @SuppressWarnings("resource")
    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++) {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      }
    }
    System.out.println(cnt);
  } @SuppressWarnings("resource")
    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++) {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      }
    } int i = 0; int i = 0; i 0 i <= A i A i++ i++ i {
      for (int j = 0; j <= B; j++) {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      }
    } {
      for (int j = 0; j <= B; j++) {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      }
    } for (int j = 0; j <= B; j++) {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      } int j = 0; int j = 0; j 0 j <= B j B j++ j++ j {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      } {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      } for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        } int k = 0; int k = 0; k 0 k <= C k C k++ k++ k {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        } {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        } int total = 500 * i + 100 * j + 50 * k; total 500 * i + 100 * j + 50 * k 500 * i + 100 * j + 50 * k 500 * i 500 i 100 * j 100 j 50 * k 50 k cnt = (X == total) ? cnt + 1 : cnt cnt (X == total) ? cnt + 1 : cnt (X == total) X total cnt + 1 cnt 1 cnt System.out.println(cnt) System.out.println System.out System System.out cnt String[] args args public class Main {
  public static void main(String[] args) {
    @SuppressWarnings("resource")
    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++) {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      }
    }
    System.out.println(cnt);
  }
} public class Main {
  public static void main(String[] args) {
    @SuppressWarnings("resource")
    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++) {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      }
    }
    System.out.println(cnt);
  }
} Main

import java.util.*;

public class Main {
  public static void main(String[] args) {
    @SuppressWarnings("resource")
    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++) {
        for (int k = 0; k <= C; k++) {
          int total = 500 * i + 100 * j + 50 * k;
          cnt = (X == total) ? cnt + 1 : cnt;
        }
      }
    }
    System.out.println(cnt);
  }
}
