#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
using namespace std;

char digsum(char a,char b,char *r) {
    int c = (a+b+*r)- '0' * 3;
    *r = (c/10) + '0';
    return (c%10) + '0';
}

string suma(string a, string b) {
    char r = '0';
    string s = "";
    for (int i = a.size()-1; i >= 0; i--) {
        s = digsum(a.at(i),b.at(i),&r) + s;
    }
    if (r > '0') s = r + s;
    return s;
}

int main() {
    vector<string> brojevi;
    string broj;
    
    int n,maxlen = 0;
    cin >> n;
    for (int i = 0; i < n ; i++) {
        cin >> broj;
        sort(broj.begin(),broj.end());
        reverse(broj.begin(),broj.end());
        brojevi.push_back(broj);
        if (broj.size() > maxlen) maxlen = broj.size();
    }    
    
    for (int i = 0; i < n ; i++) {
        brojevi[i] = std::string(maxlen-brojevi[i].size(), '0') + brojevi[i];
    }
    
    sort(brojevi.begin(),brojevi.end());
    reverse(brojevi.begin(),brojevi.end());

    string a,b,c;
    c = suma( brojevi[0],brojevi[1]);

    for (int i = 0; i < 2 ; i++) {
      while (brojevi[i][0]=='0') brojevi[i] = brojevi[i].substr(1);
    }

    a = brojevi[0];
    b = brojevi[1];
    
    cout << a << endl << b << endl << c << endl;
        
    return 0;
}