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#include <cstdio>
#include <iostream>
#include <string>

using namespace std;
 
int main()
{
    int even[26], odd[26];
    string s1, s2;
    int n;

    cin >> n;
    cin >> s1;
    cin >> s2;
    
    for (int i=0; i<26; i++)
        even[i] = odd[i] = 0;

    for (int i=0; i<n; i++)
    {
        if (i%2 == 0)
        {
            even[s1[i]-'a']++;
            even[s2[i]-'a']--;
        }
        else
        {
            odd[s1[i]-'a']++;
            odd[s2[i]-'a']--;   
        }
    }

    for (int i=0; i<26; i++)
        if (even[i] != 0 || odd[i] != 0)
        {
            cout << "NIE\n";
            return 0;
        }
    cout << "TAK\n";
}