# A B の値を文字列で受け取る
a, b = gets(chomp: true).split

a_m = a.to_i * 1000
b_m = b.to_i * 60 * 60

case a_m <=> b_m
when 0
  puts "same"
when 1
  puts "KoD"
when -1
  puts "blackyuki"
end