import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        // 整数の入力
        String str = sc.next();
        int count = 0;
        for (char c : str.toCharArray()) {
            if (c == '-') {
                count--;
            } else {
                count++;
            }
        }
        System.out.println(count);
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        // 整数の入力
        String str = sc.next();
        int count = 0;
        for (char c : str.toCharArray()) {
            if (c == '-') {
                count--;
            } else {
                count++;
            }
        }
        System.out.println(count);
    }
} Main public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        // 整数の入力
        String str = sc.next();
        int count = 0;
        for (char c : str.toCharArray()) {
            if (c == '-') {
                count--;
            } else {
                count++;
            }
        }
        System.out.println(count);
    } main {
        Scanner sc = new Scanner(System.in);
        // 整数の入力
        String str = sc.next();
        int count = 0;
        for (char c : str.toCharArray()) {
            if (c == '-') {
                count--;
            } else {
                count++;
            }
        }
        System.out.println(count);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String str = sc.next(); str sc.next() sc.next sc int count = 0; count 0 for (char c : str.toCharArray()) {
            if (c == '-') {
                count--;
            } else {
                count++;
            }
        } char c str.toCharArray() str.toCharArray str {
            if (c == '-') {
                count--;
            } else {
                count++;
            }
        } {
            if (c == '-') {
                count--;
            } else {
                count++;
            }
        } if (c == '-') {
                count--;
            } else {
                count++;
            } c == '-' c '-' {
                count--;
            } count-- count {
                count++;
            } count++ count System.out.println(count) System.out.println System.out System System.out count String[] args args public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        // 整数の入力
        String str = sc.next();
        int count = 0;
        for (char c : str.toCharArray()) {
            if (c == '-') {
                count--;
            } else {
                count++;
            }
        }
        System.out.println(count);
    }
} public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        // 整数の入力
        String str = sc.next();
        int count = 0;
        for (char c : str.toCharArray()) {
            if (c == '-') {
                count--;
            } else {
                count++;
            }
        }
        System.out.println(count);
    }
} Main
import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        // 整数の入力
        String str = sc.next();
        int count = 0;
        for (char c : str.toCharArray()) {
            if (c == '-') {
                count--;
            } else {
                count++;
            }
        }
        System.out.println(count);
    }
}