import std.stdio;
import std.string;
import std.conv;
import std.algorithm;

auto changeName(T)(T name){ return name=="oda" ? "yukiko" : "oda"; }

void main(){
  auto s = readln.chomp;
  int stone;
  foreach(i; 0..8)
    foreach(j; readln.chomp){ if(j != '.') ++stone; }
  writeln(stone%2 ? changeName(s) : s );
}