#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vll = vector<ll>;
using pll = pair<ll,ll>;
using vpl = vector<pll>;
using vvl =vector<vll>;
#define f first
#define s second
#define pb push_back
#define all(v) v.begin(),v.end()
int main(){
ios_base::sync_with_stdio(0);cin.tie(NULL);
ll n, m ,k;
cin >> n >> m >> k;
vll cl(n);
for(ll& i:cl){cin >> i;i--;}
vvl g(n);
for(ll a, b, i=0; i < m; ++i){
cin >> a >> b;
g[--a].pb(--b);
g[b].pb(a);
}
vvl dp(n, vll(32));
vll ord(31);
iota(all(ord),1);
sort(all(ord), [&](ll a, ll b){return __builtin_popcount(a)<__builtin_popcount(b);});
for(ll i = 0; i < n; ++i)dp[i][1<<cl[i]]=1;
ll ans = 0;
for(ll i: ord){
for(ll j = 0; j < n; ++j){
if(__builtin_popcount(i)>1)ans += dp[j][i];
if(i & (1<<cl[j])){
for(ll h: g[j]){
if(i & (1<<cl[h]))continue;
dp[h][i|(1<<cl[h])]+=dp[j][i];
}
}
}
}
cout << ans;
}
