#include "islands.h"
#include<bits/stdc++.h>
using namespace std;
#define in insert
#define all(x) x.begin(),x.end()
#define pb push_back
#define eb emplace_back
#define ff first
#define ss second
//#define int long long
typedef long long ll;
typedef vector<int> vi;
typedef set<int> si;
typedef multiset<int> msi;
typedef pair<int, int> pii;
typedef vector<pii> vpii;
variant<bool, vector<int>> find_journey(int n, int m, vector<int> U, vector<int> V) {
if(n == 2) {
vector<int> a0, a1;
for(int i = 0; i < m; i++) {
if(U[i] == 0) a0.pb(i);
else a1.pb(i);
}
if(a0.size() >= 2 && a1.size() >= 1) return vector<int>{a0[0], a1[0], a0[1], a0[0], a1[0], a0[1]};
else return false;
}
return false;
}
