#[allow(unused)]
use proconio::{input, marker::Chars};

fn main() {
    input! {
        s: String,
        b:[Chars; 8],
    }
    let mut player = vec![s.clone()];
    if s == "yukiko" {
        player.push(String::from("oda"));
    } else {
        player.push(String::from("yukiko"));
    }
    let mut cnt = 0;
    for i in 0..8 {
        for j in 0..8 {
            if b[i][j] != '.' {
                cnt += 1;
            }
        }
    }
    println!("{}", player[cnt % 2])
}