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#include <iostream>

using namespace std;

const int SIZE = 1e6 + 6;

int parz[SIZE];
int nieparz[SIZE];

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int n;
	cin >> n;
	string BIT;
	string BAJT; 
	cin >> BIT >> BAJT;
	for (int i = 1; i <= n; ++i)
	{
		if (i % 2 == 0)
		{
			parz[(int)(BIT[i - 1])]++;
		}
		else
		{
			nieparz[(int)(BIT[i - 1])]++;
		}
	}
	for (int i = 1; i <= n; ++i)
	{
		if (i % 2 == 0)
		{
			parz[(int)(BAJT[i - 1])]--;
			if (parz[(int)(BAJT[i - 1])] < 0) { cout << "NIE"; return 0; }
		}
		else 
		{
			nieparz[(int)(BAJT[i - 1])]--;
			if (nieparz[(int)(BAJT[i - 1])] < 0) { cout << "NIE"; return 0; }
		}
	}
	cout << "TAK";
}