#include<cstdio>
#include<cstring>
#include<vector>
#include<cstdlib>
#include <sstream>
 
using namespace std;
 
int lw[100],rw[100];
vector<int> l[100],r[100];
 
int main(){
 
	int n,i,j,temp;
	stringstream stream;
	char s[1000],c;
	scanf("%d",&n);
	scanf("%c",&c);
	vector<int>::iterator it;
 
	for(i=0;i<n;i++){
 
		scanf(" %[^\n]s",s);
		stream.clear();
		stream.str(s);
 
		stream >> lw[i];
		while(stream >> temp) {
			l[i].push_back(temp);
		}
 
		scanf(" %[^\n]s",s);
		stream.clear();
		stream.str(s);
 
		stream >> rw[i];
		while(stream >> temp) {
			r[i].push_back(temp);
		}
 
		printf("%d\n",lw[i]);
		for(it=l[i].begin();it!=l[i].end();it++)
			printf("%d\n",*it);
 
 
		printf("%d\n",rw[i]);
		for(it=r[i].begin();it!=r[i].end();it++)
			printf("%d\n",*it);
 
	}
 
	return 0;}
 

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4

0 1

0 2

0

0 3

3

0

0

0