import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] a = sc.next().split("");
        int cnt = 0;
        for (String operand : a) {
            switch (operand) {
                case "+": cnt++;
                    break;
                case "-": cnt--;
                    break;
            }
        }
        System.out.println(cnt);
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] a = sc.next().split("");
        int cnt = 0;
        for (String operand : a) {
            switch (operand) {
                case "+": cnt++;
                    break;
                case "-": cnt--;
                    break;
            }
        }
        System.out.println(cnt);
    }
} Main public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] a = sc.next().split("");
        int cnt = 0;
        for (String operand : a) {
            switch (operand) {
                case "+": cnt++;
                    break;
                case "-": cnt--;
                    break;
            }
        }
        System.out.println(cnt);
    } main {
        Scanner sc = new Scanner(System.in);
        String[] a = sc.next().split("");
        int cnt = 0;
        for (String operand : a) {
            switch (operand) {
                case "+": cnt++;
                    break;
                case "-": cnt--;
                    break;
            }
        }
        System.out.println(cnt);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String[] a = sc.next().split(""); a sc.next().split("") sc.next().split sc.next() sc.next sc "" int cnt = 0; cnt 0 for (String operand : a) {
            switch (operand) {
                case "+": cnt++;
                    break;
                case "-": cnt--;
                    break;
            }
        } String operand a {
            switch (operand) {
                case "+": cnt++;
                    break;
                case "-": cnt--;
                    break;
            }
        } {
            switch (operand) {
                case "+": cnt++;
                    break;
                case "-": cnt--;
                    break;
            }
        } switch (operand) {
                case "+": cnt++;
                    break;
                case "-": cnt--;
                    break;
            } operand case "+": "+" case "+": cnt++ cnt break; case "-": "-" case "-": cnt-- cnt break; System.out.println(cnt) System.out.println System.out System System.out cnt String[] args args public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] a = sc.next().split("");
        int cnt = 0;
        for (String operand : a) {
            switch (operand) {
                case "+": cnt++;
                    break;
                case "-": cnt--;
                    break;
            }
        }
        System.out.println(cnt);
    }
} public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] a = sc.next().split("");
        int cnt = 0;
        for (String operand : a) {
            switch (operand) {
                case "+": cnt++;
                    break;
                case "-": cnt--;
                    break;
            }
        }
        System.out.println(cnt);
    }
} Main
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] a = sc.next().split("");
        int cnt = 0;
        for (String operand : a) {
            switch (operand) {
                case "+": cnt++;
                    break;
                case "-": cnt--;
                    break;
            }
        }
        System.out.println(cnt);
    }
}
