for _ in range(int(input())):
n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
m = sorted(zip(a, b))
print(*[i[0] for i in m])
print(*[i[1] for i in m]) #include<bits/stdc++.h>
using namespace std;
int main(){
int t;cin>>t;while(t--){
long long int n;cin>>n;
int a[n],b[n];
for(int i=0;i<n;i++){
cin>>a[i];
}
for(int i=0;i<n;i++){
cin>>b[i];
}
vector<pair<int,int>> p;
for(int i=0;i<n;i++){
p.push_back ({a[i],b[i]});
}
sort(p.begin(),p.end());
for(int i=0;i<n;i++){
cout<<p[i].first<<" ";
}
cout<<endl;
for(int i=0;i<n;i++){
cout<<p[i].second<<" ";
}
cout<<endl;
}
}1047B - Cover Points | 1381B - Unmerge |
1256A - Payment Without Change | 908B - New Year and Buggy Bot |
979A - Pizza Pizza Pizza | 731A - Night at the Museum |
742A - Arpa’s hard exam and Mehrdad’s naive cheat | 1492A - Three swimmers |
1360E - Polygon | 1517D - Explorer Space |
1230B - Ania and Minimizing | 1201A - Important Exam |
676A - Nicholas and Permutation | 431A - Black Square |
474B - Worms | 987B - High School Become Human |
1223A - CME | 1658B - Marin and Anti-coprime Permutation |
14B - Young Photographer | 143A - Help Vasilisa the Wise 2 |
320A - Magic Numbers | 1658A - Marin and Photoshoot |
514A - Chewbaсca and Number | 382A - Ksenia and Pan Scales |
734B - Anton and Digits | 1080A - Petya and Origami |
1642D - Repetitions Decoding | 1440A - Buy the String |
1658F - Juju and Binary String | 478A - Initial Bet |