#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;
 
int main() {
	int n, cnt=0, idx, b=0;
	char s[15], a[15][15]={"vaporeon","jolteon","flareon","espeon","umbreon","leafeon","glaceon","sylveon"};
	scanf("%d", &n);
	scanf("%s", s);
	for(int i=0; i<n; i++) if(s[i]!='.') b++;
	for(int i=0; i<8; i++) if(strlen(a[i])==n) {
		for(int j=0; j<n; j++) if(a[i][j]==s[j] && s[j]!='.') cnt++;
		if(cnt==b) {idx=i; break;}
		cnt=0;
	}
	printf("%s", a[idx]);
	return 0;
}

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

NwouLi5mZW9u

7
...feon