#include<iostream>
#include<algorithm>
#include<iomanip>
using namespace std;

struct data{
    int coe;
    int deg;
}A[11],B[11],Ans1[20],Ans2[20];
bool cmp(struct data a,struct data b){
    if(a.deg>b.deg)return true;
    else if(a.deg==b.deg){
        if(a.deg==0){
            if(a.coe!=0)return true;
            else return false;
        }
        else{
            if(a.coe>b.coe)return true;
            else return false;
        }
    }
    else return false;
}
int main(){
    int lines;
    int a_ptr,b_ptr,tmp_ptr,tmp2_ptr;
    bool out;
    cin>>lines;
    while(lines--){
        for(int i=0;i<11;i++){
            A[i].coe=0;
            A[i].deg=0;
            B[i].coe=0;
            B[i].deg=0;
        }
        for(int i=0;i<20;i++){
            Ans1[i].coe=0;
            Ans1[i].deg=0;
            Ans2[i].coe=0;
            Ans2[i].deg=0;
        }

        for(int i=0;i<10;i++){
            cin>>A[i].coe;
            if(A[i].coe==0)break;
            cin>>A[i].deg;
        }
        for(int i=0;i<10;i++){
            cin>>B[i].coe;
            if(B[i].coe==0)break;
            cin>>B[i].deg;
        }
        sort(A,A+10,cmp);
        sort(B,B+10,cmp);

        a_ptr=b_ptr=tmp_ptr=tmp2_ptr=0;
        while(true){
            if(A[a_ptr].coe==0&&B[b_ptr].coe==0)break;
            else if(A[a_ptr].deg>B[b_ptr].deg){
                Ans1[tmp_ptr++]=A[a_ptr];
                Ans2[tmp2_ptr++]=A[a_ptr++];
            }
            else if(B[b_ptr].deg>A[a_ptr].deg){
                Ans1[tmp_ptr++]=B[b_ptr];
                Ans2[tmp2_ptr++]=B[b_ptr++];
            }
            else{
                if(A[a_ptr].coe+B[b_ptr].coe!=0){
                    Ans1[tmp_ptr].coe=A[a_ptr].coe+B[b_ptr].coe;
                    Ans1[tmp_ptr++].deg=A[a_ptr].deg;
                }
                if(A[a_ptr].coe-B[b_ptr].coe!=0){
                    Ans2[tmp2_ptr].coe=A[a_ptr].coe-B[b_ptr].coe;
                    Ans2[tmp2_ptr++].deg=A[a_ptr].deg;
                }
                a_ptr++;
                b_ptr++;
            }
        }

        out=false;
        for(int i=0;i<20;i++){
            if(Ans1[i].coe==0&&Ans1[i].coe==0)break;
            if(Ans1[i].deg!=0){
                cout<<showpos<<Ans1[i].coe<<"x"<<noshowpos<<Ans1[i].deg;
                out=true;
            }
            else{
                cout<<showpos<<Ans1[i].coe;
                out=true;
            }
        }
        if(!out)cout<<"0";
        cout<<endl;

        out=false;
        for(int i=0;i<20;i++){
            if(Ans2[i].coe==0&&Ans2[i].coe==0)break;
            if(Ans2[i].deg!=0){
                cout<<showpos<<Ans2[i].coe<<"x"<<noshowpos<<Ans2[i].deg;
                out=true;
            }
            else{
                cout<<showpos<<Ans2[i].coe;
                out=true;
            }
        }
        if(!out)cout<<"0";
        cout<<endl;
    }
}