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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
#include<bits/stdc++.h>
using namespace std;
void fastio()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
}
void test(int cnt, int a)
{
    while (a > 0)
    {
        if (cnt >= a * 6)
        {
            cout << "w";
            cnt-=6;
        }
        else if (cnt >= a * 5)
        {
            cout << "n";
            cnt-=5;
        }
        else if (cnt >= a * 4)
        {
            cout << "c";
            cnt-=4;
        }
        else
        {
            cout << "a";
            cnt-=3;
        }
        a--;
    }
    cout << "\n";
}
int main()
{
    fastio();
    int a;
    cin >> a;
    string s;
    cin >> s;
    int cnt = count(s.begin(), s.end(), '1');
    if (cnt >= a * 3 && cnt <= a * 6)
    {
        test(cnt, a);
    }
    else
    {
        cout << "NIE\n";
    }
}