Task 2_14

#include "stdafx.h"
#include <iostream>
using namespace std;
int main()
{
    cout << "Input number" << endl;
    int a;
    cin >> a;
    int b=a;
    int c;
    int sum = 0;
    do {
        c = b % 10;
        b = b / 10;
        sum = sum + c;
    } while (b != 0);
    cout << sum<<endl;
    return 0;
}