> #include <iostream>
> #include <sstream>
> #include <stdlib.h>
> #include <string>
> using namespace std;
> 
> string inventory(string n)
> {
> 	stringstream ss;
> 	int temp[10] = {0};
> 	int j = 0;
> 	for (int i = 0; i < n.length(); ++i)
> 	{
> 		j = n[i]- 48;
> 		temp[j] +=1;
> 	}
> 	for (int i = 0; i < 10; ++i)
> 	{
> 		if (temp[i]>0){
> 			ss << 10*temp[i] + i;
> 		}			
> 	}
> 	return ss.str();
> }
> int main(){
> 	string s,inventory_s;
> 	string inventory_list[15];
> 	while (cin >> s)
> 	{
> 		inventory_s = "";
> 		bool flag = false;
> 		if (s != "-1")
> 		{
> 			cout << s;
> 			for (int i = 0; i < 15; i++)
> 			{				
> 				inventory_list[i] = s;
> 				s = inventory(s);
> 				for (int j = 0; j <= i; j++)
> 				{
> 					if (s == inventory_list[j])
> 					{
> 						if (i == j && j == 0)
> 							printf(" is self-inventorying");
> 						else if (i == j && j > 0)
> 							printf(" is self-inventorying after %d steps", j);
> 						else
> 							printf(" enters an inventory loop of length %d ", (i-j+1));
> 						flag = true;
> 						break;
> 					}
> 				}
> 				if (flag) 
> 					break;
> 				else if (i==14)
> 					cout << " can not be classified after 15 iterations";
> 			}
> 		}			
> 		cout << endl;
> 	}
> 	system("pause");
> 	return 0;
> }