import java.util.Scanner;

public 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 sum = 0;
        int answer = 0;

        for (int i = 0; i <= a; i++) {
            for (int j = 0; j <= b; j ++) {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            }
        }
        System.out.println(answer);
    }
} import java.util.Scanner; Scanner java.util public 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 sum = 0;
        int answer = 0;

        for (int i = 0; i <= a; i++) {
            for (int j = 0; j <= b; j ++) {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            }
        }
        System.out.println(answer);
    }
} 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 sum = 0;
        int answer = 0;

        for (int i = 0; i <= a; i++) {
            for (int j = 0; j <= b; j ++) {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            }
        }
        System.out.println(answer);
    } main {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int x = sc.nextInt();

        int sum = 0;
        int answer = 0;

        for (int i = 0; i <= a; i++) {
            for (int j = 0; j <= b; j ++) {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            }
        }
        System.out.println(answer);
    } 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 sum = 0; sum 0 int answer = 0; answer 0 for (int i = 0; i <= a; i++) {
            for (int j = 0; j <= b; j ++) {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            }
        } 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++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            }
        } {
            for (int j = 0; j <= b; j ++) {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            }
        } for (int j = 0; j <= b; j ++) {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            } int j = 0; int j = 0; j 0 j <= b j b j ++ j ++ j {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            } {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            } for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                } int k = 0; int k = 0; k 0 k <= c k c k++ k++ k {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                } {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                } sum = (i * 500 + j * 100 + k * 50) sum (i * 500 + j * 100 + k * 50) i * 500 + j * 100 + k * 50 i * 500 i 500 j * 100 j 100 k * 50 k 50 if (sum == x) {
                        answer += 1;
                    } sum == x sum x {
                        answer += 1;
                    } answer += 1 answer 1 System.out.println(answer) System.out.println System.out System System.out answer String[] args args public 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 sum = 0;
        int answer = 0;

        for (int i = 0; i <= a; i++) {
            for (int j = 0; j <= b; j ++) {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            }
        }
        System.out.println(answer);
    }
} public 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 sum = 0;
        int answer = 0;

        for (int i = 0; i <= a; i++) {
            for (int j = 0; j <= b; j ++) {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            }
        }
        System.out.println(answer);
    }
} Main
import java.util.Scanner;

public 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 sum = 0;
        int answer = 0;

        for (int i = 0; i <= a; i++) {
            for (int j = 0; j <= b; j ++) {
                for (int k = 0; k <= c; k++) {
                    sum = (i * 500 + j * 100 + k * 50);
                    if (sum == x) {
                        answer += 1;
                    }
                }
            }
        }
        System.out.println(answer);
    }
}
