#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
#define MASK(i) (1LL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()
#define block_of_code if(true)
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
ll gcd(ll a, ll b){return __gcd(a, b);}
ll lcm(ll a, ll b){return a / gcd(a, b) * b;}
ll LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ll mask){return __builtin_popcountll(mask);}
int ctz(ull mask){return __builtin_ctzll(mask);}
int logOf(ull mask){return 63 - __builtin_clzll(mask);}
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}
double rngesus_d(double l, double r){
double cur = rngesus(0, MASK(60) - 1);
cur /= MASK(60) - 1;
return l + cur * (r - l);
}
template <class T1, class T2>
bool maximize(T1 &a, T2 b){
if (a < b) {a = b; return true;}
return false;
}
template <class T1, class T2>
bool minimize(T1 &a, T2 b){
if (a > b) {a = b; return true;}
return false;
}
template <class T>
void printArr(T container, string separator = " ", string finish = "\n", ostream &out = cout){
for(auto item: container) out << item << separator;
out << finish;
}
template <class T>
void remove_dup(vector<T> &a){
sort(ALL(a));
a.resize(unique(ALL(a)) - a.begin());
}
const int N = 3e5 + 69;
int n, m, k;
vector<int> graph[N];
int color[N];
int main(void){
ios::sync_with_stdio(0);cin.tie(0); cout.tie(0);
clock_t start = clock();
cin >> n >> m >> k;
for(int i = 1; i<=n; ++i){
cin >> color[i];
color[i]--;
}
for(int i = 1; i<=m; ++i){
int u, v; cin >> u >> v;
graph[u].push_back(v);
graph[v].push_back(u);
}
ll dp[MASK(k)][n+1];
memset(dp, 0, sizeof dp);
for(int i = 1; i<=n; ++i) dp[MASK(color[i])][i] = 1;
ll ans = 0;
for(int mask = 1; mask < MASK(k); ++mask){
for(int i = 1; i<=n; ++i) if (dp[mask][i]){
if (pop_cnt(mask) > 1) ans += dp[mask][i];
for(int j: graph[i]) if (!GETBIT(mask, color[j])){
dp[mask + MASK(color[j])][j] += dp[mask][i];
}
}
}
cout << ans << "\n";
cerr << "Time elapsed: " << clock() - start << " ms\n";
return 0;
}
