01_Task1_Secret.cpp

// 01_01_Task1_Secret.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream> //for std::cout
#include <string>
#include <iomanip>
#include <cctype>      //char toupper, tolower

using namespace std;

int main()
{
    cin.sync_with_stdio(false);
    cout.sync_with_stdio(false);

    char ch;
    cin >> ch;
    int sum = 0;
    while (ch != '.')
    {
        if (isdigit(ch))
        {
            sum += ch - 48;
        }
        cin >> ch;
    }
    if ((sum >= 65 && sum <= 90) ||
        (sum >= 97 && sum <= 122))
    {
        cout << (char)sum << endl;
    }
    else
    {
        cout << sum << endl;
    }
    return 0;
}