10922 - 2 the 9s

#include <iostream>
#include <string>
#include <iomanip>
#include <cmath>
#include<sstream>
using namespace std;

string IntToString(int num) {
	stringstream ss;
	ss << num;
	return ss.str();
}
int main()
{
	string number;
	while (cin >> number) {
		if (number == "0") {
			break;
		}
		int degree = 0;
		if (number.length() == 1) {
			degree = 1;
		}
		string temp = number;
		while (temp.length() > 1) {
			int t = 0;
			for (int i = 0; i < temp.length(); i++) {
				t += temp[i] - '0';
			}
			temp = IntToString(t);
			degree++;
		}
		if ((temp[0] - '0') % 9 == 0) {
			cout << number << " is a multiple of 9 and has 9-degree " << degree << "." << endl;
		}
		else {
			cout << number << " is not a multiple of 9." << endl;
		}
	}
}