you are my friend
#

4

#include<iostream>
#include<algorithm>
#include<string>
#include<string.h>
using namespace std;
int main()
{
    char a[1000];
    string b[1000];
    int i;
    while(gets(a))
    {
        int k=0;
        if(strcmp(a,"#")==0)
            break;
        else
        {
            char *p;
            p=strtok(a," ");
            while(p)         //you are my friend
            {
               b[k++]=p;
               p=strtok(NULL," ");      
            }
            sort(b,b+k); //aaaabbc
            int count=0;//abc
            for(i=0;i<k;i++)
            {
                while(i<k-1 && b[i]==b[i+1])
                {
                     i++;
                }
                count++;
            }
            cout<<count<<endl;
        }
    }
    return 0;
}