#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(ll i=0;i<n;i++)
#define repl(i,l,r) for(ll i=(l);i<(r);i++)
#define per(i,n) for(ll i=n-1;i>=0;i--)
#define perl(i,r,l) for(ll i=r-1;i>=l;i--)
#define fi first
#define se second
#define pb push_back
#define ins insert
#define pqueue(x) priority_queue<x,vector<x>,greater<x>>
#define all(x) (x).begin(),(x).end()
#define CST(x) cout<<fixed<<setprecision(x)
#define vtpl(x,y,z) vector<tuple<x,y,z>>
#define rev(x) reverse(x);
using ll=long long;
using vl=vector<ll>;
using vvl=vector<vector<ll>>;
using pl=pair<ll,ll>;
using vpl=vector<pl>;
using vvpl=vector<vpl>;
const ll MOD=1000000007;
const ll MOD9=998244353;
const int inf=1e9+10;
const ll INF=4e18;
const ll dy[8]={1,0,-1,0,1,1,-1,-1};
const ll dx[8]={0,-1,0,1,1,-1,1,-1};
template<class T> inline bool chmin(T& a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template<class T> inline bool chmax(T& a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

int main(){
    ll n;cin >> n;
    vvpl g(3*n);
    vl cost(n);
    rep(i,n){
        cin >> cost[i];
    }
    ll m;cin >> m;
    rep(i,m){
        ll a,b,c;cin >> a >> b >> c;
        rep(k,3){
            g[a+k*n].pb({b+k*n,c});
            g[b+k*n].pb({a+k*n,c});
        }
    }
    ll ans=INF;
    rep(i,n){
        rep(j,n){
            if(i==j)continue;
            if(i==0||j==0||i==n-1||j==n-1)continue;
            g[i].pb({n+i,cost[i]});
            g[n+j].pb({n+n+j,cost[j]});
            vl d(3*n,INF);d[0]=0;
            pqueue(pl) que;que.push({0,0});
            while(!que.empty()){
                pl p=que.top();que.pop();
                ll v=p.se;
                if(d[v]<p.fi)continue;
                rep(i,g[v].size()){
                    pl ed=g[v][i];
                    if(d[ed.fi]>d[v]+ed.se){
                        //prev[ed.fi]=v;
                        d[ed.fi]=d[v]+ed.se;
                        que.push({d[ed.fi],ed.fi});
                    }
                }
            }
            chmin(ans,d[3*n-1]);
            //cout << d[3*n-1] <<endl;
            g[i].pop_back();
            g[n+j].pop_back();
        }
    }
    /*rep(j,3){
        rep(i,n)cout << d[i+j*n]<<" ";cout << endl;
    }
    cout << d[3*n-1] <<endl;*/
    cout << ans <<endl;
}