import java.util.Scanner;

public class Main {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        int sum = 0;
        for (int i = 0; i < 5; i++) {
            sum += Integer.parseInt(sc.next());
        }

        System.out.println(15 - sum);
        sc.close();
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        int sum = 0;
        for (int i = 0; i < 5; i++) {
            sum += Integer.parseInt(sc.next());
        }

        System.out.println(15 - sum);
        sc.close();
    }
} Main public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        int sum = 0;
        for (int i = 0; i < 5; i++) {
            sum += Integer.parseInt(sc.next());
        }

        System.out.println(15 - sum);
        sc.close();
    } main {

        Scanner sc = new Scanner(System.in);

        int sum = 0;
        for (int i = 0; i < 5; i++) {
            sum += Integer.parseInt(sc.next());
        }

        System.out.println(15 - sum);
        sc.close();
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int sum = 0; sum 0 for (int i = 0; i < 5; i++) {
            sum += Integer.parseInt(sc.next());
        } int i = 0; int i = 0; i 0 i < 5 i 5 i++ i++ i {
            sum += Integer.parseInt(sc.next());
        } {
            sum += Integer.parseInt(sc.next());
        } sum += Integer.parseInt(sc.next()) sum Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc System.out.println(15 - sum) System.out.println System.out System System.out 15 - sum 15 sum sc.close() sc.close sc String[] args args public class Main {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        int sum = 0;
        for (int i = 0; i < 5; i++) {
            sum += Integer.parseInt(sc.next());
        }

        System.out.println(15 - sum);
        sc.close();
    }
} public class Main {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        int sum = 0;
        for (int i = 0; i < 5; i++) {
            sum += Integer.parseInt(sc.next());
        }

        System.out.println(15 - sum);
        sc.close();
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        int sum = 0;
        for (int i = 0; i < 5; i++) {
            sum += Integer.parseInt(sc.next());
        }

        System.out.println(15 - sum);
        sc.close();
    }
}
