SendMeTheCode

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigInteger;
import java.util.ArrayList;

public class SendMeTheCode {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String input = br.readLine();

        ArrayList<Character> numbAsList = new ArrayList<>();

        for (char c : input.toCharArray()) {
            numbAsList.add(c);
        }
        if (numbAsList.get(0) == '-') numbAsList.remove(0);

        int length = numbAsList.size();

        long newResult = 0L;

        boolean isEven = false;
        for (int i = length - 1; i >= 0 ; i--) {
            int index = length - i;
            if (isEven) {
                newResult = newResult + (index * (numbAsList.get(i) - '0') * (numbAsList.get(i) - '0'));
               // System.out.println(newResult + " even " + index);
                isEven = false;
                continue;
            } else {
                newResult = newResult + (index * index *  (numbAsList.get(i) - '0') );
               // System.out.println(newResult + " odd " + index);
                isEven = true;
            }
        }

        boolean isHacked = false;
        long newLength = newResult % 10;
        if (newLength == 0) {
            isHacked = true;
        }
        System.out.println(newResult);
        if (isHacked) System.out.println("Big Vik wins again!");

        for (int i = 0; i < newLength; i++) {
            long s = (newResult % 26);
            if (s + i == 26) {
                System.out.print( ('A'));
            } else if (s + i > 26) {
                System.out.print((char) ('A' + s + i - 26));
            } else {
                System.out.print((char) ('A' + s + i));
            }
        }
    }
}