using System;
using System.Linq;

namespace No88_1{
    public class Program{
        public static void Main(string[] args){
            var players = new string[]{"oda", "yukiko"};
            var sente = Console.ReadLine();
            var gote = players[1 - Array.IndexOf(players, sente)];

            var ban = string.Empty;
            for(var i = 0; i < 8; i++) ban += Console.ReadLine();

            Console.WriteLine(ban.Count(c => c == '.') % 2 == 0 ? sente : gote);
        }
    }
}