#include "islands.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 400 + 10;
int deg[MAXN], n, m, W[MAXN][MAXN];
vector<int> f[MAXN];
variant<bool, vector<int>> find_journey(int n_, int m_, vector<int> U_, vector<int> V_) {
n = n_;
m = m_;
for (int i = 0; i < m; i++) {
deg[U_[i]]++, f[U_[i]].push_back(i);
W[U_[i]][V_[i]] = i;
}
if (n == 2) {
if (deg[0] >= 2 && deg[1] >= 1) return vector<int>({f[0][0], f[1][0], f[0][1], f[0][0], f[1][0], f[0][1]});
return false;
}
return vector<int>({W[0][1], W[1][2], W[2][1], W[0][1], W[0][2], W[1][2], W[2][1], W[0][2]});
}
