    import java.util.Scanner;
     
    public class Main {
        public static void main(String[] args){
            Scanner sc = new Scanner(System.in);
            // 整数の入力
    	String a = sc.nextLine();
    	String b = "+";
    	String c = "-";
    	String takahashi1;
    	String takahashi2;
    	String result;
     
               if(b.equals(a)) {
            	System.out.print("+");
               }else if(c.equals(a)) {
               	System.out.print("-");
               }else{
            	System.out.print("");
               }
              }
             }