import java.util.Scanner;
public class No88 {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		String st = s.nextLine();
		String ne = "odayukiko".replaceAll(st,"");
		int space = 0;
		for(int i = 0;i < 8;i++){
			String bw = s.nextLine();
			for(int k = 0;k < 8;k++){
				if(bw.charAt(k) == '.'){
					space++;
				}
			}
		}
		s.close();

		if(space%2 == 0){
			System.out.println(st);
		}else{
			System.out.println(ne);
		}

	}

}