#include <bits/stdc++.h>
using namespace std;
pair<int, int> look(const string& s) {
    int fin = 0;
    int minima = 0;
    for(int i = 0; i < s.length(); i++) {
        if(s[i] == '(') fin++;
        else fin--;
        minima = min(fin, minima);
    }
    return {fin, minima};
}
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin >> n;
    vector <string> a(n + 1);
    vector <pair <int, int>> v1;
    vector <pair <int, int>> v2;
    for(int i = 1; i <= n; i++) {
        cin >> a[i];
        auto ax = look(a[i]);
        int minima = ax.second;
        if(ax.first > 0) {
            v1.push_back({minima, i});
        }
        else {
            v2.push_back({- minima, i});
        }
    }
    vector <int> ans;
    string s = "";
    for(auto x: v1) {
        int idx = x.second;
        s += a[idx];
        ans.push_back(idx);
    }
    for(auto x: v2) {
        int idx = x.second;
        s += a[idx];
        ans.push_back(idx);
    }
    auto bx = look(s);
    if(bx.second >= 0 && bx.first == 0) {
        for(auto x: ans)
            cout << x << '\n';
    }
    else cout << "impossible" << '\n';

}