import java.util.Arrays;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int c = 0;

        for (int i = 0; i < s.length(); i++) {
            c += s.charAt(i)=='+'? 1 : -1;
        }
        System.out.println(c);
    }
} import java.util.Arrays; Arrays java.util import java.util.Scanner; Scanner java.util public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int c = 0;

        for (int i = 0; i < s.length(); i++) {
            c += s.charAt(i)=='+'? 1 : -1;
        }
        System.out.println(c);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int c = 0;

        for (int i = 0; i < s.length(); i++) {
            c += s.charAt(i)=='+'? 1 : -1;
        }
        System.out.println(c);
    } main {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int c = 0;

        for (int i = 0; i < s.length(); i++) {
            c += s.charAt(i)=='+'? 1 : -1;
        }
        System.out.println(c);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String s = sc.next(); s sc.next() sc.next sc int c = 0; c 0 for (int i = 0; i < s.length(); i++) {
            c += s.charAt(i)=='+'? 1 : -1;
        } int i = 0; int i = 0; i 0 i < s.length() i s.length() s.length s i++ i++ i {
            c += s.charAt(i)=='+'? 1 : -1;
        } {
            c += s.charAt(i)=='+'? 1 : -1;
        } c += s.charAt(i)=='+'? 1 : -1 c s.charAt(i)=='+'? 1 : -1 s.charAt(i)=='+' s.charAt(i) s.charAt s i '+' 1 -1 1 System.out.println(c) System.out.println System.out System System.out c String[] args args public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int c = 0;

        for (int i = 0; i < s.length(); i++) {
            c += s.charAt(i)=='+'? 1 : -1;
        }
        System.out.println(c);
    }
} public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int c = 0;

        for (int i = 0; i < s.length(); i++) {
            c += s.charAt(i)=='+'? 1 : -1;
        }
        System.out.println(c);
    }
} Main
import java.util.Arrays;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int c = 0;

        for (int i = 0; i < s.length(); i++) {
            c += s.charAt(i)=='+'? 1 : -1;
        }
        System.out.println(c);
    }
}
