local mfl, mce = math.floor, math.ceil
local n, m, l = io.read("*n", "*n", "*n")
local dp1, dp2 = {}, {}
local lim = 1000
for i = 1, lim do
  dp1[i] = false
end
dp1[l] = true
for i = 1, n do
  local src = i % 2 == 1 and dp1 or dp2
  local dst = i % 2 == 1 and dp2 or dp1
  for j = 1, lim do
    dst[j] = src[j]
  end
  local ai = io.read("*n")
  for j = 1, lim do
    if src[j] then
      local d = mfl((ai + j) / 2)
      dst[d] = true
    end
  end
end
local tbl = n % 2 == 1 and dp2 or dp1
print(tbl[m] and "Yes" or "No")