#include <bits/stdc++.h>

using namespace std;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    ifstream in("smile.in");
    ofstream out("smile.out");
    int n;
    in >> n;
    string s;
    in >> s;
    int dv = 0, sk1 = 0, sk2 = 0, len = s.size();
    for(int i = 0;i < len;i++){
        if(s[i] == ':') dv++;
        else if(s[i] == ')') sk1++;
        else sk2++;
    }
    int usm = 0, namr = 0, s1c = 0, s2c = 0;
    for(int i = 0;i < len;i++){
        if(s[i] == ':'){
            usm = usm + (sk1 - s1c);
            namr = namr + (sk2 - s2c);
        }
        else if(s[i] == ')') s1c++;
        else s2c++;
    }
    if(usm == namr){
        out << "neutral" << endl;
    }
    else if(usm > namr){
        out << "positive" << endl;
    }
    else{
        out << "negative" << endl;
    }
    return 0;
}