N, M, L = gets.split.map(&:to_i)
A = gets.split.map(&:to_i)

dp = Array.new(M + 1, false)
dp[L] = true

A.each do |a|
  M.downto(L) do |b|
    na = (a + b) / 2
    next if na > M

    dp[na] = true
  end
end

if dp[M]
  puts 'Yes'
else
  puts 'No'
end