// No.1592 Tenkei 90
package main

import (
	"fmt"
	"sort"
	"strings"
)

func main() {
	var S string
	fmt.Scan(&S)

	ss := strings.Split("kyoprotenkei90", "")
	tt := strings.Split(S, "")
	sort.Slice(ss, func(i, j int) bool { return ss[i] < ss[j] })
	sort.Slice(tt, func(i, j int) bool { return tt[i] < tt[j] })
	for i := 0; i < 14; i++ {
		if ss[i] != tt[i] {
			fmt.Println("No")
			return
		}
	}
	fmt.Println("Yes")
}