import java.util.*;
import java.util.stream.Stream;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        // while (in.hasNextInt()) { // 注意 while 处理多个 case
        //     int a = in.nextInt();
        //     int b = in.nextInt();
        //     System.out.println(a + b);
        // }
        String n = in.nextLine();
        while (in.hasNextLine()) {
            String s = in.nextLine();
            char[] cs = s.toCharArray();
            List<Node> nodes = new ArrayList<>();
            nodes.add(new Node(s.charAt(0), 1));
            for (int i = 1; i < s.length(); i++) {
                boolean has = false;
                for (int j = 0; j < nodes.size(); j++) {
                    if (s.charAt(i) == nodes.get(j).c) {
                        nodes.get(j).count++;
                        has = true;
                    }
                }
                if (!has) {
                    char c = s.charAt(i);
                    Node node = new Node(c, 1);
                    nodes.add(node);
                }
            }
            Collections.sort(nodes);
            int sum = 0;
            int j = 26;
            for (int i = 0; i < nodes.size(); i++) {
                sum += j * nodes.get(i).count;
                j--;
            }
            System.out.println(sum);
        }

    }
}
class Node implements Comparable {
    char c;
    int count;

    Node (char c, int count) {
        this.c = c;
        this.count = count;
    }

    @Override
    public int compareTo(Object o) {
        Node node = (Node)o;
        return node.count - this.count;
    }
}