/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.ArrayList;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		ArrayList<String> noDuplicateList = new ArrayList<>();
          String[] words={"Others","Others","Others","Sentence"};
          for(int i=0;i<words.length;i++) {
            if(!noDuplicateList.contains(words[i])){
                noDuplicateList.add(words[i]);
            }
          }
          for (int i = 0; i < noDuplicateList.size(); i++) {
              System.out.println(noDuplicateList.get(i));
        }
	}
}

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