#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>
#include<utility>

using namespace std;

#define int long long
#define endl "\n"

constexpr long long INF = (long long)1e18;
constexpr long long MOD = 1'000'000'007; 

struct fast_io {
	fast_io(){
		std::cin.tie(nullptr);
		std::ios::sync_with_stdio(false);
	};
} fio;

signed main(){
	cout<<fixed<<setprecision(10);
	
	string S;
	string hoge = "keyence";
	vector<int> con(hoge.size());
	
	
	cin>>S;
	

	for(int i = 0; i < S.size(); i++){
		for(int j = hoge.size()-1; j >= 1; j--){
			if(hoge[j] == S[i] && con[j-1] == true) con[j] = true;
		}
		if(S[i] == 'k') con[0] = true;
	}
	
	cout<<(con[hoge.size()-1]?"YES":"NO")<<endl;
	
	return 0;
}