1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
#include <bits/stdc++.h>
using namespace std;

char T[5] = {' ', 'a', 'c', 'g', 'o'};


int main () {
	int n, j=0; cin>>n;
	char c;
	for (int i=0; i<n*8; ++i) {
		cin>>c;
		if (c == '1') j++;
	}
	
	int baza = j/n-2; int k = j%n;
	if (j>=n*3 && j<=n*6) {
		for (int i=0; i<k; ++i)
			cout<<T[baza+1];
		for (int i=k; i<n; ++i) 
			cout<<T[baza];
	}
	else 
		cout<<"NIE";
}