let w = "kadomatsu"

let s = stdin.ReadLine()

let mutable i = 0
let mutable flg = false
for c in w do
    if not flg then
        if c = s.[i] then
            i <- i + 1
    if i >= s.Length then
        flg <- true

if flg then
    "Yes"
else
    "No"
|> printfn "%s"