7.s.1

#include <iostream>
#include <string>
using namespace std;

int getCharN(char c) {
    if (!isalpha(c))
        return 0;

    if (c >= 97)
        c -= 32;

    return c - 64;
}

long simplify(long n) {
    long result = 0;
    while (n >= 1) {
        result += n % 10;
        n /= 10;
    }
    return result;
}

int main() {
    long sum = 0;

    cout << "Enter name: ";
    string name = "";
    getline(cin, name);
    for (int i = 0, lenght = name.length(); i < lenght; i++)
        sum += getCharN(name[i]);

    while (sum > 9) {
        sum = simplify(sum);
    }
    cout << "Name number is: " << sum << endl;
}