while(true){
str = scanner.nextLine();
str = str.trim().replaceAll("\\s{1,}", " ");
if(str.startsWith("#")){
break;
}
String[] strs = str.split(" ");
map = new HashMap();
for(int i = 0 ; i < strs.length ; ++i){
map.put(strs[i], 0);
}
System.out.println(map.keySet().size());
}
}
}
package com.njupt.acm;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
public class HDU_2072 {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
String str ;
Map map;
while(true){
str = scanner.nextLine();
str = str.trim().replaceAll("\\s{1,}", " ");
if(str.startsWith("#")){
break;
}
String[] strs = str.split(" ");
map = new HashMap();
for(int i = 0 ; i < strs.length ; ++i){
map.put(strs[i], 0);
}
System.out.println(map.keySet().size());
}
}
}