import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String input = sc.next();
        int cnt = 0;
        for (int i = 0; i < input.length(); i++) {
            if (input.charAt(i) == '+')
                cnt += 1;
            else
                cnt -= 1;
        }
        System.out.println(cnt);
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String input = sc.next();
        int cnt = 0;
        for (int i = 0; i < input.length(); i++) {
            if (input.charAt(i) == '+')
                cnt += 1;
            else
                cnt -= 1;
        }
        System.out.println(cnt);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String input = sc.next();
        int cnt = 0;
        for (int i = 0; i < input.length(); i++) {
            if (input.charAt(i) == '+')
                cnt += 1;
            else
                cnt -= 1;
        }
        System.out.println(cnt);
    } main {
        Scanner sc = new Scanner(System.in);
        String input = sc.next();
        int cnt = 0;
        for (int i = 0; i < input.length(); i++) {
            if (input.charAt(i) == '+')
                cnt += 1;
            else
                cnt -= 1;
        }
        System.out.println(cnt);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String input = sc.next(); input sc.next() sc.next sc int cnt = 0; cnt 0 for (int i = 0; i < input.length(); i++) {
            if (input.charAt(i) == '+')
                cnt += 1;
            else
                cnt -= 1;
        } int i = 0; int i = 0; i 0 i < input.length() i input.length() input.length input i++ i++ i {
            if (input.charAt(i) == '+')
                cnt += 1;
            else
                cnt -= 1;
        } {
            if (input.charAt(i) == '+')
                cnt += 1;
            else
                cnt -= 1;
        } if (input.charAt(i) == '+')
                cnt += 1;
            else
                cnt -= 1; input.charAt(i) == '+' input.charAt(i) input.charAt input i '+' cnt += 1 cnt 1 cnt -= 1 cnt 1 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) {
        Scanner sc = new Scanner(System.in);
        String input = sc.next();
        int cnt = 0;
        for (int i = 0; i < input.length(); i++) {
            if (input.charAt(i) == '+')
                cnt += 1;
            else
                cnt -= 1;
        }
        System.out.println(cnt);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String input = sc.next();
        int cnt = 0;
        for (int i = 0; i < input.length(); i++) {
            if (input.charAt(i) == '+')
                cnt += 1;
            else
                cnt -= 1;
        }
        System.out.println(cnt);
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String input = sc.next();
        int cnt = 0;
        for (int i = 0; i < input.length(); i++) {
            if (input.charAt(i) == '+')
                cnt += 1;
            else
                cnt -= 1;
        }
        System.out.println(cnt);
    }
}
