import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] str = sc.next().split("");
        
        int result = 0;
        for (String s : str) {
            if (s.equals("+")) {
                result++;
            } else {
                result--;
            }
        }
      
        System.out.println(result);
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] str = sc.next().split("");
        
        int result = 0;
        for (String s : str) {
            if (s.equals("+")) {
                result++;
            } else {
                result--;
            }
        }
      
        System.out.println(result);
    }
} Main public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] str = sc.next().split("");
        
        int result = 0;
        for (String s : str) {
            if (s.equals("+")) {
                result++;
            } else {
                result--;
            }
        }
      
        System.out.println(result);
    } main {
        Scanner sc = new Scanner(System.in);
        String[] str = sc.next().split("");
        
        int result = 0;
        for (String s : str) {
            if (s.equals("+")) {
                result++;
            } else {
                result--;
            }
        }
      
        System.out.println(result);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String[] str = sc.next().split(""); str sc.next().split("") sc.next().split sc.next() sc.next sc "" int result = 0; result 0 for (String s : str) {
            if (s.equals("+")) {
                result++;
            } else {
                result--;
            }
        } String s str {
            if (s.equals("+")) {
                result++;
            } else {
                result--;
            }
        } {
            if (s.equals("+")) {
                result++;
            } else {
                result--;
            }
        } if (s.equals("+")) {
                result++;
            } else {
                result--;
            } s.equals("+") s.equals s "+" {
                result++;
            } result++ result {
                result--;
            } result-- result System.out.println(result) System.out.println System.out System System.out result String[] args args public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] str = sc.next().split("");
        
        int result = 0;
        for (String s : str) {
            if (s.equals("+")) {
                result++;
            } else {
                result--;
            }
        }
      
        System.out.println(result);
    }
} public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] str = sc.next().split("");
        
        int result = 0;
        for (String s : str) {
            if (s.equals("+")) {
                result++;
            } else {
                result--;
            }
        }
      
        System.out.println(result);
    }
} Main
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String[] str = sc.next().split("");
        
        int result = 0;
        for (String s : str) {
            if (s.equals("+")) {
                result++;
            } else {
                result--;
            }
        }
      
        System.out.println(result);
    }
}
