#include "bits/stdc++.h"
using namespace std;
using ll = long long;
#define forn(i, n) for(int i = 0; i < n; ++i)
#define sz(a) (int)a.size()
#define pb push_back
#define all(a) a.begin(), a.end()
const int N = 2005;
vector<pair<int, int>> adj[N];
int cnt[N], s;
bool vis[N];
set<int> require[N];
set<int> have[N];
set<int> already;
void dfs(int u, vector<int>& r) {
assert(vis[u] == false);
vis[u] = true;
++cnt[s];
already.insert(r[u]);
for(auto x: adj[u]) {
int v = x.first, c = x.second;
if(!vis[v]) {
if(already.count(c)) {
dfs(v, r);
} else {
require[c].insert(v);
have[v].insert(c);
}
}
}
//for(auto x: have[u]) require[x].erase(u);
for(auto x: require[r[u]]) {
if(!vis[x]) {
dfs(x, r);
}
}
}
void solve(int start, vector<int>& r) {
already.clear();
s = start;
forn(i, N) require[i].clear();
forn(i, N) have[i].clear();
forn(i, N) vis[i] = false;
dfs(start, r);
}
vector<int> find_reachable(vector<int> r, vector<int> u, vector<int> v, vector<int> c) {
for(int i = 0; i < sz(u); ++i) {
adj[u[i]].pb({v[i], c[i]});
adj[v[i]].pb({u[i], c[i]});
}
int n = sz(r);
vector<int> ans(n, 1);
for(int i = 0; i < n; ++i) solve(i, r);
forn(i, n) ans[i] = cnt[i];
int x = *min_element(all(ans));
for(int& i: ans) i = (i == x ? 1 : 0);
return ans;
}
