E0018.cpp

/*
Problem Statement: https://www.hackerrank.com/challenges/designer-pdf-viewer/problem
*/

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <set>

using namespace std;

int designerPdfViewer(vector<int> h, string word) {
	for(char &c : word)
		c -= 97;
	set<int> letters(word.begin(),word.end());
	vector<int> arr;
	for(auto itr=letters.begin() ; itr != letters.end() ; itr++)
		arr.push_back(h[*itr]);
	int max = *max_element(arr.begin(),arr.end());
	return max*word.length();
}

int main()
{
	int num;
	string word;
	vector<int> h;
	for(int i=1 ; i<=26 ; i++){
		cin>>num;
		h.push_back(num);
	}
	cin.ignore();
	getline(cin,word);
	cout<<designerPdfViewer(h,word);
	return 0;
}