#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <ctime>
#include <cassert>
#include <iostream>
#include <cctype>
#include <sstream>
#include <string>
#include <list>
#include <vector>
#include <queue>
#include <set>
#include <stack>
#include <map>
#include <utility>
#include <numeric>
#include <algorithm>
#include <iterator>
#include <bitset>
#include <complex>
#include <fstream>
using namespace std;
typedef long long ll;
const double EPS = 1e-9;
typedef vector<int> vint;
typedef pair<int, int> pint;
#define rep(i, n) REP(i, 0, n)
#define ALL(v) v.begin(), v.end()
#define MSG(a) cout << #a << " " << a << endl;
#define REP(i, x, n) for(int i = x; i < n; i++)
template<class T> T RoundOff(T a){ return int(a+.5-(a<0)); }
template<class T, class C> void chmax(T& a, C b){ if(a < b) a = b; }
template<class T, class C> void chmin(T& a, C b){ if(b < a) a = b; }
template<class T, class C> pair<T, C> mp(T a, C b){ return make_pair(a, b); }

string toString(int x)
{
	stringstream ss; ss << x;
	return ss.str();
}

string rootString(int f, int t)
{
	int b = f < t ? 1 : -1;
	
	string res;
	
	for(int i = f; i != t; i += b)
		res += toString(i);
	
	return res + toString(t);
}

void print(string s)
{
	rep(i, s.size())
		cout << s[i] << (i == s.size() - 1 ? "\n" : " ");
}

int main()
{
	int n;
	cin >> n;
	
	while(n--)
	{
		int f, t;
		cin >> f >> t;
		
		if(f < t)	print(rootString(f, t));
		else
		{
			if(f <= 5)	print(rootString(f, t));
			else if(t < 5) print(rootString(f, 9) + toString(5) + rootString(4, t));
			else if(t == 5) print(rootString(f, 10).substr(0, f - t - 1) + toString(5));
			else print(rootString(f, 5) + rootString(4, 0) + rootString(1, t));
		}
	}
}