#include <bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin>>n;
    getchar();//回车
    while(n--)
    {
        string s1,s2;
        getline(cin,s1);
        getline(cin,s2);
        for(int i=0;i<s1.length();i++)
            if(!isalpha(s1[i]) && !isdigit(s1[i])) s1[i]=' ';
        for(int i=0;i<s2.length();i++)
            if(!isalpha(s2[i]) && !isdigit(s2[i])) s2[i]=' '; 
        int l1=0,l2=0;
        map<string,string> m;
        map<string,string>::iterator it;
        vector<string> c,d,e;
        stringstream ss(s1),ss2(s2);
        string a,b;
        while(ss>>a)
        {
            ss>>b; m[a]=b; l1++;
        }
        while(ss2>>a)
        {
            ss2>>b; l2++;
            if(!m.count(a)) c.push_back(a);
            else if(m[a]!=b) d.push_back(a);
            if(m.count(a))
            {
                it=m.find(a);
                m.erase(it);
            }
        }
        sort(d.begin(),d.end());
        sort(c.begin(),c.end());
        if(c.size())
        {
            cout<<"+";
            for(int i=0;i<c.size();i++)
            {
                cout<<c[i];
                if(i==c.size()-1) cout<<endl;
                else cout<<",";
            }
        }
        if(m.size())
        {
            cout<<"-";
            for(map<string,string>::iterator i=m.begin();i!=m.end();i++)
            {
                if(i!=m.begin()) cout<<',';
                cout<<i->first;
            }
            cout<<endl;
        }
        if(d.size())
        {
            cout<<"*";
            for(int i=0;i<d.size();i++)
            {
                cout<<d[i];
                if(i==d.size()-1) cout<<endl;
                else cout<<',';
            }
        }
        if(!c.size()&&!d.size()&&!m.size()) puts("No changes");
        cout<<endl;
    }
    return 0;
}