10 9 5
0 0 0 0 0 0 0 0 0 4
10 3
10 7
10 5
10 8
10 9
10 1
10 4
10 6
10 2
 10 20 5
2 2 1 4 0 3 0 4 1 3
6 1
8 5
2 10
3 5
1 9
4 6
9 7
2 3
7 4
10 8
4 9
2 5
4 10
2 8
10 3
1 8
8 10
6 7
5 1
10 3
 10 9 2
1 1 0 1 1 1 1 1 1 1
3 10
3 8
3 6
3 7
3 5
3 4
3 1
3 9
3 2
 10 10 5
3 4 2 0 3 0 1 1 2 4
8 9
7 3
5 2
4 8
3 5
6 8
3 5
1 10
10 6
9 1
 10 30 10
7 9 1 5 4 6 0 3 8 2
10 8
8 5
6 1
8 5
3 10
10 8
9 2
8 5
7 3
3 10
1 9
10 8
6 1
1 9
8 5
7 3
1 9
7 3
7 3
4 6
10 8
7 3
3 10
10 8
1 9
8 5
6 1
4 6
3 10
6 1
 6 7 3
0 1 2 0 1 2
1 2
2 3
3 1
3 4
4 5
5 6
6 4
 10 9 2
0 1 0 0 1 0 1 1 1 1
3 7
3 2
8 6
1 7
3 9
5 4
10 1
4 9
6 2
 10 10 10
2 3 5 7 0 8 6 9 4 1
1 2
10 1
5 10
5 10
4 6
8 5
1 2
1 2
7 4
1 2
 10 9 5
1 1 1 1 1 2 1 1 1 1
6 7
6 3
6 5
6 4
6 9
6 8
6 1
6 10
6 2
 10 9 2
0 0 0 0 1 1 0 1 1 1
4 10
8 2
10 3
3 9
1 5
6 2
6 1
7 9
8 7
 5 5 3
2 2 0 1 0
5 4
5 2
1 4
5 1
4 3
 10 9 5
0 4 1 0 1 2 1 0 4 4
8 7
4 3
1 5
2 4
6 5
10 8
9 1
6 7
6 3
 7 8 3
0 0 1 2 2 0 1
1 5
4 3
7 5
1 7
3 2
2 4
6 7
6 5
 10 30 7
5 4 2 3 3 2 5 0 1 6
7 2
2 4
9 3
3 5
5 2
7 10
6 5
10 1
9 8
10 8
3 4
10 4
4 2
7 6
2 8
1 10
5 10
5 6
5 6
6 2
6 5
9 10
8 6
2 4
9 7
1 9
10 4
6 10
9 3
2 7
 5 5 3
1 1 2 0 0
1 3
1 5
2 3
3 4
2 4
 10 10 2
1 1 1 0 1 0 0 0 0 1
4 10
10 7
7 1
5 6
6 3
1 8
2 9
5 4
3 8
2 9
 9 13 3
0 2 1 2 2 0 1 0 1
4 7
9 5
7 5
7 6
9 6
8 2
3 2
8 3
4 3
4 9
1 2
1 3
5 6
 6 3 3
0 1 2 0 1 2
4 5
5 6
4 6
 10 10 5
3 3 3 4 4 1 3 0 2 4
7 5
10 8
10 8
5 8
2 10
9 2
7 4
3 4
7 5
4 8
 10 15 2
1 0 1 1 0 0 1 0 0 1
5 1
7 8
2 10
3 5
1 9
6 4
7 9
2 3
6 4
8 10
9 4
8 4
8 1
10 8
6 7
 2 1 2
1 0
1 2
 5 5 4
0 1 2 3 3
1 2
2 3
3 4
4 1
3 5
 10 9 5
2 1 2 0 1 0 1 2 0 4
10 9
3 7
1 5
10 6
7 9
10 4
5 4
2 6
8 2
 9 10 3
0 2 2 1 0 0 1 2 1
4 6
2 6
5 7
4 8
9 2
9 1
3 5
8 1
3 7
6 2
 10 20 3
2 2 1 1 2 0 0 1 2 2
7 5
7 10
2 7
10 4
10 8
1 7
3 7
9 7
3 10
6 3
4 1
4 1
8 6
3 7
10 3
2 7
8 5
2 7
1 4
2 6
 10 9 8
3 2 1 1 5 6 7 0 4 0
10 7
5 9
10 4
7 6
6 5
3 2
2 1
9 1
3 8

1
1 
 5
1 4 6 7 9 
 10
1 2 3 4 5 6 7 8 9 10 
 1
2 
 1
2 
 3
4 5 6 
 10
1 2 3 4 5 6 7 8 9 10 
 1
2 
 1
6 
 10
1 2 3 4 5 6 7 8 9 10 
 3
1 4 5 
 1
6 
 3
2 3 4 
 8
2 3 4 5 7 8 9 10 
 3
2 3 4 
 2
2 9 
 1
4 
 1
1 
 1
1 
 10
1 2 3 4 5 6 7 8 9 10 
 2
1 2 
 1
5 
 1
1 
 3
3 5 7 
 3
3 7 10 
 1
4 

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef long double ldb;
template <typename T> using ordered_set =  tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define V vector
#define pll pair<ll,ll>
#define endl "\n"
#define CLEAR(a) memset(a,0,sizeof(a))
#define all(x) x.begin(),x.end()
#define sz(x) ((ll)x.size())
#define rep0(i,n) for(ll i=0;i<n;i++)
#define rep1(i,n) for(ll i=1;i<=n;i++)
#define ios_tie() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cerr.tie(nullptr)
#define trace1(a)             cout <<#a<<":"<<a<< endl;
#define trace2(a,b)           cout <<#a<<":"<<a<<" | "<<#b<<":"<<b<< endl;
#define trace3(a,b,c)         cout <<#a<<":"<<a<<" | "<<#b<<":"<<b<<" | "<<#c<<":"<<c<<endl;
#define trace4(a,b,c,d)       cout <<#a<<":"<<a<<" | "<<#b<<":"<<b<<" | "<<#c<<":"<<c<<" | "<<#d<<":"<<d<<endl;

const ll inf = 1e18;
const ll mod = 998244353 ;
const ll maxn = 1e5+1;
const ldb PI = acos(-1);

void lol(ll s) {cerr<<"check........................................... "<<s<<endl;}
ll power(ll x,ll y) {ll res=1; x%=mod; while(y) {if(y&1) res=(res*x)%mod; y>>=1LL; x=(x*x)%mod; }return res;}
ll inv(ll x) {return power(x,mod-2);}//(1/x)%y = x^(y-2) % y;	// pow(x,y)%m = pow(x,y%(m-1))%m
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

V<ll> mh[maxn];
V<ll> adj[maxn];
ll vis[maxn];
stack<ll> stk;
V<ll> nxt;
ll now,n,m,h;
V<V<ll>> res;
ll u[maxn];
void dfs(ll s)
{
	vis[s] = 1;
	for(auto it:adj[s])
		if(!vis[it])
			dfs(it);
	if(!now)
		stk.push(s);
	else
		nxt.pb(s);
}
void R()
{
	V<ll> tmp[n+1];
    rep1(i,n)
    	for(auto it:adj[i])
    		tmp[it].pb(i);
    rep1(i,n)
    	adj[i] = tmp[i];
}
void SCC()
{
	rep1(i,n)
        if(!vis[i])
            dfs(i);
    R();
    CLEAR(vis);		
    now = 1;
    while(!stk.empty())
    {
    	ll s = stk.top();
    	stk.pop();
    	if(vis[s])
    		continue;
    	nxt.clear();
    	dfs(s);
    	res.pb(nxt);
    }
}
int main()
{
    ios_tie();
    cin>>n>>m>>h;
    rep1(i,n)
    {
    	cin>>u[i];
    	mh[u[i]].pb(i);
    }
    set<pll> cts;
    while(m--)
    {
    	ll a,b;
    	cin>>a>>b;
    	cts.insert(mp(a,b));
    	cts.insert(mp(b,a));
    }
    rep1(i,n)
    	for(auto it:mh[(u[i]+1)%h])
    		if(cts.find(mp(i,it))!=cts.end())
    			adj[i].pb(it);
    SCC();
    cout<<sz(res.back())<<endl;
    for(auto it:res.back())
    	cout<<it<<" ";
    cout<<endl;
    return 0;
}
