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#include <iostream>
#include <string>
#include <set>

using namespace std;

set<int> convert(string s)
{
    set<int> a;
    s.erase(0, 1);
    while(s.length())
    {
        int punc = min(s.find(','), s.find(']'));
        string littles = s.substr(0, punc);
        a.insert(stoi(littles));
        s.erase(s.begin(), s.begin() + punc + 1);
    }
    return a;
}

void print(set<int> a)
{
    cout << "[";
    int counter = 0;
    for(set<int>::iterator i = a.begin(); i != a.end(); i++)
    {
        counter++;
        cout << *i;
        if (counter < a.size())
            cout << ",";
    }
    cout << "]\n";
}


int main()
{
    string A, B;
    cin >> A >> B;
    set<int> a, b, intersection, association, difference;
    a = convert(A);
    b = convert(B);

    for(set<int>::iterator i = a.begin(); i != a.end(); i++)
    {
        if (b.count(*i))
            intersection.insert(*i);
        else
            difference.insert(*i);
        association.insert(*i);
    }
    for(set<int>::iterator i = b.begin(); i != b.end(); i++)
    {
        association.insert(*i);
    }

    print(intersection);
    print(association);
    print(difference);

    return 0;
}