#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 3e5 + 5;
const int inf = 2e9;
const int mod = 1e9 + 7;
vector<int> g[N];
ll dp[N][32];
int a[N];
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int n, m, k;
cin >> n >> m >> k;
for (int i = 0; i < n; i++) {
cin >> a[i];
a[i] -= 1;
dp[i][1 << a[i]] = 1;
}
for (int i = 0; i < m; i++) {
int u, v;
cin >> u >> v;
u -= 1; v -= 1;
g[u].push_back(v);
g[v].push_back(u);
}
ll ans = 0;
for (int mask = 0; mask < (1 << k); mask++) {
for (int i = 0; i < n; i++) {
if ((mask & (1 << a[i])) == 0) continue;
for (int j : g[i]) {
if ((mask & (1 << a[j])) == 0) continue;
dp[i][mask] += dp[j][mask ^ (1 << a[i])];
}
ans += dp[i][mask];
}
}
cout << ans - n << en;
return 0;
}
