import java.util.*;

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

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

        System.out.println(count);
    } main {
        Scanner sc = new Scanner(System.in);
        int count = 0;
        String S = sc.next();
        for(int i = 0;i < S.length();i++){
            if('+' == S.charAt(i)){
                count++;
            } else count--;
        }

        System.out.println(count);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int count = 0; count 0 String S = sc.next(); S sc.next() sc.next sc for(int i = 0;i < S.length();i++){
            if('+' == S.charAt(i)){
                count++;
            } else count--;
        } int i = 0; int i = 0; i 0 i < S.length() i S.length() S.length S i++ i++ i {
            if('+' == S.charAt(i)){
                count++;
            } else count--;
        } {
            if('+' == S.charAt(i)){
                count++;
            } else count--;
        } if('+' == S.charAt(i)){
                count++;
            } else count--; '+' == S.charAt(i) '+' S.charAt(i) S.charAt S i {
                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);
        int count = 0;
        String S = sc.next();
        for(int i = 0;i < S.length();i++){
            if('+' == S.charAt(i)){
                count++;
            } else count--;
        }

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

        System.out.println(count);
    }
}