#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
	cin>>n;
	if(n<0){
		cout<<"-";
	}if(n>0){
		cout<<"+";
	} 
}
/**************************************************************
	Problem: 1645
	User: xuezihong1
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/