/**
*   author:     roccoshi
*   created:    2021-07-31 14:09:59
*/
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define endl '\n'
#define pii pair<int,int>
#define mp make_pair
#define pb push_back
#define fi first
#define se second
const int pi = 3.1415927;
const int mod = 1e9 + 7;
const int inf = 0x3f3f3f3f; 
const int ninf = 0xc0c0c0c0;
const int N = 55;

int id[N];
int die[N][N];


int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int t; cin >> t;
    while (t--) {
        int n;
        cin >> n;
        int idx = -1;
        set<int> lives; // 活着的人
        for (int i = 1; i <= n; ++i) {
            lives.insert(i);
            cin >> id[i];
            if (id[i] == 1) idx = i;
        }
        for (int i = 1; i <= n; ++i) {
            for (int j = 1; j <= n; ++j) {
                cin >> die[i][j];
            }
        }
        int now = die[idx][1]; lives.erase(now);
        while (lives.size() > 2 && lives.count(idx)) {
            for (int i = 1; i <= n; ++i) {
                if (lives.count(die[now][i])) {
                    now = die[now][i];
                    lives.erase(now);
                    break;
                }
            }
        }  
        if (!lives.count(idx)) cout << "lieren" << endl;
        else cout << "langren" << endl;
    }
    return 0;
}