#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;

template<typename T>
using ordered_set = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;

#define int long long

#define INF (int)1e18

auto pi = new char[10000000];

int ru() {
	while (!isdigit(*pi)) {
		pi++;
	}
	int res = 0;
	while (isdigit(*pi)) {
		res *= 10;
		res += *pi - '0';
		pi++;
	}
	return res;
}

signed main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
#ifdef CB
	freopen("be2.txt","r",stdin);
//	freopen("out.txt","w",stdout);
#endif
	fread(pi,1,10000000,stdin);
	int N=ru(),M=ru();
	vector<int>v(N+1);
	int su=0;
	for(int i=1;i<=N;i++){
		v[i]=ru();
		su+=v[i];
	}
	vector<vector<int>>g(N+1);
	for(int i=0;i<M;i++){
		int a=ru(),b=ru();
		g[a].push_back(b);
		g[b].push_back(a);
	}
	vector<int>l(N+1,INF),a(N+1,0);
	vector<int>s(N+1);
	auto dfs=[&](auto self,int i)->void{
		for(int j:g[i]){
			if(l[j]==l[i]-1){
				continue;
			}
			if(l[j]!=INF){
				if(l[j]<l[a[i]]){
					a[i]=j;
				}
				continue;
			}
			l[j]=l[i]+1;
			self(self,j);
			s[i]+=s[j];
			if(l[a[j]]<l[a[i]]){
				a[i]=a[j];
			}
		}
		s[i]+=v[i];
	};
	l[1]=0;
	dfs(dfs,1);
	int ans=INF;
	int ans1=0;
	int ans2=0;
	ordered_set<int>z,o;
	auto dfs2=[&](auto self,int i)->void{
		for(int j:g[i]){
			if(l[j]<l[i]){
				continue;
			}
			if(l[a[j]]>l[i]){
				int s1=s[j],s2,s3;
				auto f=[&](){
					ans1=max({s1,s2,s3})-min({s1,s2,s3});
					if(ans1<ans){
						ans=ans1;
						ans2=0;
					}
				};
				auto it=o.upper_bound((su-s1)/2);
				if(it!=o.end()){
					s2=*it;
					s3=su-s1-s2;
					f();
				}
				if(it!=o.begin()){
					--it;
					s2=*it;
					s3=su-s1-s2;
					f();
				}
				int ll=max({s1-ans,su-s1-(s1+ans),(su-s1-ans)/2});
				int hh=min({s1+ans,su-s1-(s1-ans),(su-s1+ans)/2});
				if(ll<=hh){
					ans2+=o.order_of_key(hh+1)-o.order_of_key(ll);
				}
				{
					for(int s2:z){
						s2=su-s2;
						s3=su-s1-s2;
						if(ans==max({s1,s2,s3})-min({s1,s2,s3})){
							ans2++;
						}
					}
				}
				z.insert(s[j]);
			}
			self(self,j);
			if(l[a[j]]>l[i]){
				z.erase(s[j]);
				o.insert(s[j]);
			}
		}
	};
	dfs2(dfs2,1);
	cout<<ans<<'\n';
	cout<<ans2<<'\n';
	return 0;
}