// Made By Haireden Aibyn #include <algorithm> #include <iostream> #include <iomanip> #include <cstring> #include <cstdlib> #include <fstream> #include <string> #include <cstdio> #include <vector> #include <cmath> #include <ctime> #include <queue> #include <deque> #include <stack> #include <map> #include <set> using namespace std; #define fname "" #define INF 2147483647 #define MOD 1000000007 #define mp make_pair #define F first #define S second #define sc scanf #define pr printf #define deb(x) cerr << " | " << #x << " = " << x #define pb push_back #define ex exit(0) #define tim printf("%.4lf\n", (clock() * 1.) / CLOCKS_PER_SEC) #define cas printf(""), ex; #define y1 y4 typedef long long ll; typedef unsigned long long ull; const int N = 100500; int h[N]; int main() { srand(time(NULL)); for (int i = 0; i <= 'z' - 'a'; i++) { cin >> h[i]; } string s; cin >> s; int mx = 0; for (int i = 0; i < s.size(); i++) { mx = max(mx, h[s[i] - 'a']); } cout << int(s.size()) * mx; #ifndef ONLINE_JUDGE cerr << clock() << " ms"; #endif return 0; }