import java.util.*;
import java.io.*;

public class Main {
	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		int ans = 0;
		for(int i = 0; i<s.length(); i++) {
			if(s.charAt(i) == '-') ans--;
			else 
				ans++; 
		}
		System.out.println(ans);
	}
} import java.util.*; util.* java import java.io.*; io.* java public class Main {
	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		int ans = 0;
		for(int i = 0; i<s.length(); i++) {
			if(s.charAt(i) == '-') ans--;
			else 
				ans++; 
		}
		System.out.println(ans);
	}
} Main public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		int ans = 0;
		for(int i = 0; i<s.length(); i++) {
			if(s.charAt(i) == '-') ans--;
			else 
				ans++; 
		}
		System.out.println(ans);
	} main {
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		int ans = 0;
		for(int i = 0; i<s.length(); i++) {
			if(s.charAt(i) == '-') ans--;
			else 
				ans++; 
		}
		System.out.println(ans);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String s = sc.nextLine(); s sc.nextLine() sc.nextLine sc int ans = 0; ans 0 for(int i = 0; i<s.length(); i++) {
			if(s.charAt(i) == '-') ans--;
			else 
				ans++; 
		} int i = 0; int i = 0; i 0 i<s.length() i s.length() s.length s i++ i++ i {
			if(s.charAt(i) == '-') ans--;
			else 
				ans++; 
		} {
			if(s.charAt(i) == '-') ans--;
			else 
				ans++; 
		} if(s.charAt(i) == '-') ans--;
			else 
				ans++; s.charAt(i) == '-' s.charAt(i) s.charAt s i '-' ans-- ans ans++ ans 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) throws IOException {
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		int ans = 0;
		for(int i = 0; i<s.length(); i++) {
			if(s.charAt(i) == '-') ans--;
			else 
				ans++; 
		}
		System.out.println(ans);
	}
} public class Main {
	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		int ans = 0;
		for(int i = 0; i<s.length(); i++) {
			if(s.charAt(i) == '-') ans--;
			else 
				ans++; 
		}
		System.out.println(ans);
	}
} Main
import java.util.*;
import java.io.*;

public class Main {
	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		int ans = 0;
		for(int i = 0; i<s.length(); i++) {
			if(s.charAt(i) == '-') ans--;
			else 
				ans++; 
		}
		System.out.println(ans);
	}
}