void main()
{
	enum INF = 10 ^^ 8;
	alias Entry = Tuple!(int, "c", int, "u");
	const N = readInt;
	auto S = new int[N];
	foreach (i; 0 .. N) S[i] = readInt;
	const M = readInt;
	auto G = new int[][](N, N);
	foreach (i; 0 .. N) foreach (j; 0 .. N) G[i][j] = INF;
	foreach (i; 0 .. N) G[i][i] = 0;
	foreach (i; 0 .. M) {
		int a = readInt;
		int b = readInt;
		int c = readInt;
		chmin(G[a][b], c);
		chmin(G[b][a], c);
	}
	foreach (k; 0 .. N) foreach (i; 0 .. N) foreach (j; 0 .. N) {
		chmin(G[i][j], G[i][k] + G[k][j]);
	}
	int ans = INF;
	foreach (i; 1 .. N - 1) foreach (j; 1 .. N - 1) {
		if (i == j) continue;
		int now = S[i] + S[j];
		now += G[0][i];
		now += G[i][j];
		now += G[j][N - 1];
		chmin(ans, now);
	}
	ans.writeln;
}

import std,core.bitop;
string[]_R;
string readString(){while(_R.empty){_R=readln.chomp.split;}auto ret=_R.front;_R.popFront;return ret;}
int readInt(){return readString.to!int;}
long readLong(){return readString.to!long;}
ulong readULong(){return readString.to!ulong;}
real readReal(){return readString.to!real;}
bool chmin(T)(ref T A,T B){if(A>B){A=B;return true;}else{return false;}}
bool chmax(T)(ref T A,T B){if(A<B){A=B;return true;}else{return false;}}
int lowerBound(T)(T[]A,T x){int L=-1,R=cast(int)A.length;while(R-L>1){int mid=(L+R)/2;(A[mid]<x?L:R)=mid;}return R;}
int upperBound(T)(T[]A,T x){int L=-1,R=cast(int)A.length;while(R-L>1){int mid=(L+R)/2;(A[mid]<=x?L:R)=mid;}return R;}