#include<bits/stdc++.h>
using namespace std;
const int maxn=1<<17;
int n,brc[maxn],bro[maxn],brh,brs;
string s,ans;
void read()
{
    fstream mf;
    mf.open("smile.in");
    mf>>n;
    mf>>s;
}
void precompute()
{
    for(int i=n-1;i>=0;i--)
    {
        if(s[i]=='(')
        {
            bro[i]=bro[i+1]+1;
        }
        else bro[i]=bro[i+1];
        if(s[i]==')')
        {
            brc[i]=brc[i+1]+1;
        }
        else brc[i]=brc[i+1];
    }
}
void solve()
{
    precompute();
    for(int i=0;i<n;i++)
    {
        if(s[i]==':')
        {
            brh+=brc[i];
            brs+=bro[i];
        }
    }
}
int main()
{
    read();
    solve();
    ofstream mfmf;
    mfmf.open("smile.out");
    if(brh>brs)
    {
        mfmf<<"positive"<<endl;
    }
    else if(brs>brh)
    {
        mfmf<<"negative"<<endl;
    }
    else
    {
        mfmf<<"neutral"<<endl;
    }
    mfmf.close();

    return 0;
}