import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;

public class No88 {

	public static void main(String[] args) throws IOException{
		//次はどっちだ
		String[] text = readStr();
		
		int count = 0;
		for(int i = 0;i < 8;i++) {
			text[i+1] = text[i+1].replaceAll("[a-z]", "");
			count += 8 - text[i+1].length();
		}
		
		if(count % 2 == 0) {
			System.out.println(text[0]);
		}else {
			System.out.println("odayukiko".replaceAll(text[0], ""));
		}

	}
	
	public static String[] readStr() throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		ArrayList<String> list = new ArrayList<>();

		do {
			list.add(br.readLine());
		}while(br.ready());

		br.close();

		String[] text = new String[list.size()];
		list.toArray(text);

		return text;

	}

}