

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            String s = sc.next();
            int ans = 0;
            for (char ch : s.toCharArray()) {
                ans += ch == '+' ? 1 : -1;
            }
            System.out.println(ans);
        }
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            String s = sc.next();
            int ans = 0;
            for (char ch : s.toCharArray()) {
                ans += ch == '+' ? 1 : -1;
            }
            System.out.println(ans);
        }
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            String s = sc.next();
            int ans = 0;
            for (char ch : s.toCharArray()) {
                ans += ch == '+' ? 1 : -1;
            }
            System.out.println(ans);
        }
    } main {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            String s = sc.next();
            int ans = 0;
            for (char ch : s.toCharArray()) {
                ans += ch == '+' ? 1 : -1;
            }
            System.out.println(ans);
        }
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) while (sc.hasNext()) {
            String s = sc.next();
            int ans = 0;
            for (char ch : s.toCharArray()) {
                ans += ch == '+' ? 1 : -1;
            }
            System.out.println(ans);
        } sc.hasNext() sc.hasNext sc {
            String s = sc.next();
            int ans = 0;
            for (char ch : s.toCharArray()) {
                ans += ch == '+' ? 1 : -1;
            }
            System.out.println(ans);
        } String s = sc.next(); s sc.next() sc.next sc int ans = 0; ans 0 for (char ch : s.toCharArray()) {
                ans += ch == '+' ? 1 : -1;
            } char ch s.toCharArray() s.toCharArray s {
                ans += ch == '+' ? 1 : -1;
            } {
                ans += ch == '+' ? 1 : -1;
            } ans += ch == '+' ? 1 : -1 ans ch == '+' ? 1 : -1 ch == '+' ch '+' 1 -1 1 System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            String s = sc.next();
            int ans = 0;
            for (char ch : s.toCharArray()) {
                ans += ch == '+' ? 1 : -1;
            }
            System.out.println(ans);
        }
    }
} public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            String s = sc.next();
            int ans = 0;
            for (char ch : s.toCharArray()) {
                ans += ch == '+' ? 1 : -1;
            }
            System.out.println(ans);
        }
    }
} Main


import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            String s = sc.next();
            int ans = 0;
            for (char ch : s.toCharArray()) {
                ans += ch == '+' ? 1 : -1;
            }
            System.out.println(ans);
        }
    }
}
