#include<bits/stdc++.h>
using namespace std;


int main()
{
	freopen("in.txt","r",stdin);
	freopen("out.txt","w",stdout);
    set<string>s;
    string c,ss;
    char sr[100];
    int a,j;
 //   cout<<"sr "<<sr<<endl;
   getline(cin,c);

 	j=0;
    cout<<c<<endl;
    // cout<<"sr "<<sr<<endl;
    for(int i=0;i<c.length();i++)
    {
    	//sr[j++]=c[i];
    	//ss.push_back(c[i]);
    	if(c[i]==' '||i==c.length()-1)
    	{
    		if(i==c.length()-1)
    			ss.push_back(c[i]);
    		cout<<ss<<endl;
    		s.insert(ss);
    		ss.clear();
    		j=0;
    		while(c[i]==' ')
    		i++;
    	}
    //	cout<<"c[i] "<<c[i]<<endl;
     //	sr[j++]=c[i];
    	ss.push_back(c[i]);

    //	cout<<sr<<endl;
    }
    cout<<s.size()<<endl;

    return 0;
}