import java.util.*;

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int answer = 0;
        s = s.replace("+","");
        answer -= s.length();
        answer += 4-s.length();
        System.out.println(answer);
    }
} import java.util.*; util.* java public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int answer = 0;
        s = s.replace("+","");
        answer -= s.length();
        answer += 4-s.length();
        System.out.println(answer);
    }
} Main public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int answer = 0;
        s = s.replace("+","");
        answer -= s.length();
        answer += 4-s.length();
        System.out.println(answer);
    } main {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int answer = 0;
        s = s.replace("+","");
        answer -= s.length();
        answer += 4-s.length();
        System.out.println(answer);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String s = sc.next(); s sc.next() sc.next sc int answer = 0; answer 0 s = s.replace("+","") s s.replace("+","") s.replace s "+" "" answer -= s.length() answer s.length() s.length s answer += 4-s.length() answer 4-s.length() 4 s.length() s.length s System.out.println(answer) System.out.println System.out System System.out answer String[] args args public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int answer = 0;
        s = s.replace("+","");
        answer -= s.length();
        answer += 4-s.length();
        System.out.println(answer);
    }
} public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int answer = 0;
        s = s.replace("+","");
        answer -= s.length();
        answer += 4-s.length();
        System.out.println(answer);
    }
} Main
import java.util.*;

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int answer = 0;
        s = s.replace("+","");
        answer -= s.length();
        answer += 4-s.length();
        System.out.println(answer);
    }
}