杭电2072

//C++STL入门，set的简单应用
#include<iostream>
#include<string>
#include<sstream>
#include<set>
using namespace std;
set<string> dict;
int main()
{
    string s,x;
    while(getline(cin,s) && s[0] != '#')
    {
        dict.clear();
        stringstream ss(s);
        while(ss >> x)
            dict.insert(x);
        cout << dict.size() << endl;
    }
}