1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
#include <iostream>

char L[7] = {0, 1, 2, 'a', 'c', 'g', 'o'};

int main() {

    int n;
    std::cin >> n;

    std::string s;
    std::cin >> s;

    int ones = 0;
    for (auto b : s) {
        if (b == '1') {
            ones++;
        }
    }

    if (ones < n*3 || ones > n*6) {
        std::cout << "NIE";
    } else {
        for (int i=0; i < n; i++) {
            int diff = std::max(3, ones - ((n-1-i) * 6));
            std::cout << L[diff];
            ones -= diff;
        }
    }

    return 0;
}