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#include <iostream>
#include <algorithm>

using namespace std;


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

    int n;
    string a, b;
    cin>>n>>a>>b;

    int ile[2][256]={};
    for (int i=0; i<n; ++i)
    {
        ++ile[i%2][a[i]];
        --ile[i%2][b[i]];
    }
    for (int i=0; i<2; ++i)
        for (char c='a'; c<='z'; ++c)
            if (ile[i][c])
            {
                cout<<"NIE\n";
                return 0;
            }

    cout<<"TAK\n";
    return 0;
}