package main

import . "fmt"

func main() {
	var s string
	Scan(&s)
	b := []byte(s)
	x := []byte("kadomatsu")
	for _, bc := range b {
		ok := false
		for i, xc := range x {
			if bc == xc {
				ok = true
				x = x[i+1:]
				break
			}
		}
		if !ok {
			Println("No")
			return
		}
	}
	Println("Yes")
}