/*
 * BOGGLE.cpp
 *
 *  Created on: Jun 10, 2014
 *      Author: Arpit Bhayani
 */

#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <map>
#include <string>
#include <cstring>
#include <sstream>

using namespace std;

#define DEBUG 0
#define gc getchar
#define ll long long

void scanint(ll int &x) {
    register ll int c = gc();
    x = 0;
    for (; (c < 48 || c > 57); c = gc())
        ;
    for (; c > 47 && c < 58; c = gc()) {
        x = (x << 1) + (x << 3) + c - 48;
    }
}

int readline(char * str) {

    int i = 0;
    char ch;
    while ((ch = getchar()) != '\n') {
        str[i++] = ch;
    }
    str[i] = '\0';
    return i;
}

int main(int argc, char * argv[]) {

    map<string, int> m;
    int score[] = { 0, 1, 1, 1, 1, 2, 3, 5, 11, 11 };

    int n;
    scanf("%d", &n);
    getchar();

    string str[n], word;

    for (int i = 0; i < n; i++) {
        getline(cin, str[i]);

        istringstream s(str[i]);
        while (s >> word) {
            m[word] += 1;
        }

    }

    int max = -1;
    for (int i = 0; i < n; i++) {
        int count = 0;

        istringstream s(str[i]);
        while (s >> word) {
            map<string,int>::iterator itr = m.find(word);
            if ( itr->second == 1 ) {
                if ( itr->first.size() > 7 ) {
                    count += 11;
                }
                else {
                    count += score[itr->first.size()];
                }
            }
        }

        if ( count > max ) {
            max = count;
        }
    }

    cout << max << endl;

    return 0;
}