import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = 0;
        String s = sc.nextLine();
        for (Character c : s.toCharArray()) {
            if (c == '+') a++;
            else a--;
        }
        System.out.println(a);
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = 0;
        String s = sc.nextLine();
        for (Character c : s.toCharArray()) {
            if (c == '+') a++;
            else a--;
        }
        System.out.println(a);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = 0;
        String s = sc.nextLine();
        for (Character c : s.toCharArray()) {
            if (c == '+') a++;
            else a--;
        }
        System.out.println(a);
    } main {
        Scanner sc = new Scanner(System.in);
        int a = 0;
        String s = sc.nextLine();
        for (Character c : s.toCharArray()) {
            if (c == '+') a++;
            else a--;
        }
        System.out.println(a);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = 0; a 0 String s = sc.nextLine(); s sc.nextLine() sc.nextLine sc for (Character c : s.toCharArray()) {
            if (c == '+') a++;
            else a--;
        } Character c s.toCharArray() s.toCharArray s {
            if (c == '+') a++;
            else a--;
        } {
            if (c == '+') a++;
            else a--;
        } if (c == '+') a++;
            else a--; c == '+' c '+' a++ a a-- a System.out.println(a) System.out.println System.out System System.out a String[] args args public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = 0;
        String s = sc.nextLine();
        for (Character c : s.toCharArray()) {
            if (c == '+') a++;
            else a--;
        }
        System.out.println(a);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = 0;
        String s = sc.nextLine();
        for (Character c : s.toCharArray()) {
            if (c == '+') a++;
            else a--;
        }
        System.out.println(a);
    }
} Main
import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = 0;
        String s = sc.nextLine();
        for (Character c : s.toCharArray()) {
            if (c == '+') a++;
            else a--;
        }
        System.out.println(a);
    }
}