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#include <iostream>
#include <string>
using namespace std;
string a, b;
int taba[28];
pair<int,int> tabb[28];

int main() {
	int n;
    cin>>n;
    cin>>a>>b;
    if (a.size()!=b.size())
    {
        cout<<"NIE\n";
        return 0;
    }
    for (int i=0; i<n; i++)
    {
        taba[a[i]-'a']++;
        taba[b[i]-'a']-=1;
        if (i%2==0)
        {
            tabb[a[i]-'a'].first++;
            tabb[b[i]-'a'].first-=1;
        }
        if (i%2==1)
        {
            tabb[a[i]-'a'].second++;
            tabb[b[i]-'a'].second-=1;
        }
    }
    for (int i=0; i<27; i++)
    {
        if (taba[i]!=0 || tabb[i].first!=0 || tabb[i].second!=0)
        {
            cout<<"NIE\n";
            return 0;
        }
    }
    cout<<"TAK\n";
	return 0;
}