#include <iostream>
#include <string>

using namespace std;

int main()
{
	string str;
	int sum;
	while(1)
	{
		cin >> str;
		if(cin.eof())
		{
			return 0;
		}
		sum = 0;
		for(int i = 0; i < str.size(); i++)
		{
			sum += str[i]-48;
		}
		cout << "The sum of the digits of " << str << " is " << sum << "." << endl;
	}
}