#include<bits/stdc++.h>
using namespace std;

bool compare_neg_score(const vector<int>& a, const vector<int>& b){
    if(a[2] > b[2]) return true;
    else if (a[2] == b[2] && a[1] > b[1]) return true;
    return false;
}

bool ncompare_neg_score(const vector<int>& a, const vector<int>& b){
    if(a[2] > b[2]) return true;
    else if (a[2] == b[2] && a[1] < b[1]) return true;
    return false;
}

int main(){
    // To get input n
    int count{0};
    cin >> count;

    // Process of solving this problem:
    // 1. First, in order to make a properly nested structure, the counts of '(' and ')' has to be the same.
    // Let the total '(' - ')' be total_score, and each string also has its score.

    // 2. In the final sequence, we will always have all strings with positive scores in the front,
    // and those with negative scores in the back, so there wont be strings like "))((" happens.

    // 3. But in positive strings, there could be a substring of negative scores. E.g. ")))((((((". 
    // Despite it has positive score, it cannot be paired with some positive strings like "(" in the front.
    // Thus, we need to calculate another score "neg_score" to indicate the substring (from the start of the string) with smallest negative score.

    // 4. If all positive strings has neg_score < 0, then it's "impossible", since it must starts with ')'.

    // 5. Sort all positive strings by their neg_score (decreasing).
    // This can guaruntee we find the possible answer without choose something like "))((" as the first string and return "impossible".
    // Check each time if the total_score - new neg_score is >= 0. If not, return "impossible".
    
    // 6. After checking all the positive strings, check the negative strings for the sequence. 
    // Reverse all negative string and check like positive strings. It's like checking the string from behind.
    // Reverse means flip all ( & ) and reverse the order.
    // When they meet in the middle, we can check if total_score = 0.
    
    // 7. If it's a valid nested structure (total_score = 0), print out the sequence. Else print "impossible".
    
    // *strings with score = 0 are stored to positive strings.

    vector<vector<int>> pos_strings(0); // save strings with positive score 
    vector<vector<int>> neg_strings(0); // save strings with negative score
    bool wrong = false; // save whether it's impossible 

    // Getting input strings
    for(int i = 0; i < count; i++){
        string s;
        int score{0}, neg_score{0}, temp_neg{0}, pos_score{0}, temp_pos{0};
        cin >> s;

        // calculate score & neg_score. Fkip the negative strings
        score = 2 * std::count(s.begin(), s.end(), '(') - s.length();

        if(score < 0){
            for(char c: s){
                if(c == '(') c = ')';
                else c = '(';
            }
            reverse(s.begin(), s.end());
        }

        for(char c: s){
            if(c == '('){
                temp_neg++;
                score++;
            }else{
                temp_neg--;
                score--;
            }
            neg_score = temp_neg < neg_score ? temp_neg : neg_score;
        }

        // save the strings to corresponding vectors
        vector<int> v = {i + 1, score, neg_score};
        if(score > 0) pos_strings.emplace_back(v);
        else neg_strings.emplace_back(v);
    }

    // sort positive strings by neg_score (function defined above)
    sort(pos_strings.begin(), pos_strings.end(), compare_neg_score);
    sort(neg_strings.begin(), neg_strings.end(), ncompare_neg_score);
 
    // check each round that if the score went below 0. If so, print "impossible" and return
    int total_pos_score{0}; // save the current score 
    for(auto s: pos_strings){
        total_pos_score += s[1];
        if(total_pos_score + s[2] < 0){
            cout << "impossible";
            return 0;
        }
    }

    // check negatve strings
    int total_neg_score{0}; // save the current score 
    for(auto s: neg_strings){
        total_neg_score -= s[1];
        if(total_neg_score + s[2] < 0){
            cout << "impossible";
            return 0;
        }
    }

    if(total_pos_score != total_neg_score) cout << "impossible";
    else{
        // print results after passing all the checks, print neg strings in reverse order
        for(auto s: pos_strings) cout << s[0] << " ";
        for(auto it = neg_strings.rbegin(); it != neg_strings.rend(); it++) cout << (*it)[0] << " ";
    }
    return 0;
}