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#include <bits/stdc++.h>

#define fi first
#define se second
#define pb push_back
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

const int maxn = 300005;

int cnt[2][30];

int main()
{
    ios_base::sync_with_stdio(0);

    int n;
    cin >> n;

    string s1, s2;
    cin >> s1 >> s2;

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

    bool ans = true;
    for (int i = 0; i < 26; i++) {
        if (cnt[0][i] != 0 || cnt[1][i] != 0)
            ans = false;
    }

    if (ans)
        cout << "TAK\n";
    else
        cout << "NIE\n";    

    return 0;
}