#include<bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define fi first
#define se second
const int N = 3e5+5;
int n,m,k,a[N],dp[N][1 << 5];
vector<int>adj[N];
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin >> n >> m >> k;
for(int i = 1; i <= n; i++){
cin >> a[i];
a[i]--;
dp[i][1 << a[i]] = 1;
}
for(int i = 1; i <= m; i++){
int u,v;
cin >> u >> v;
adj[u].push_back(v);
adj[v].push_back(u);
}
int ans = -n;
for(int i = 1; i < (1 << k); i++){
for(int j = 1; j <= n; j++){
if(i & (1 << a[j])){
for(int u: adj[j]) dp[j][i] += dp[u][i^(1 << a[j])];
ans += dp[j][i];
}
}
}
cout << ans;
}
