local a = "kadomatsu"
local b = io.read()
local t = {}
for i = 1, #a + 1 do
  t[i] = {}
  for j = 1, #b + 1 do
    t[i][j] = false
  end
end
t[1][1] = true
for i = 1, #a + 1 do
  for j = 1, #b + 1 do
    if t[i][j] then
      if i < #a + 1 then
        t[i + 1][j] = true
      end
      if i < #a + 1 and j < #b + 1 then
        if a:sub(i, i) == b:sub(j, j) then
          t[i + 1][j + 1] = true
        end
      end
    end
  end
end
print(t[#a + 1][#b + 1] and "Yes" or "No")