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#include <bits/stdc++.h>

using namespace std;

int literka[26][2];

int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	
	int N;
	cin >> N;
	
	for(int i = 0; i < N; i++){
		char a;
		cin >> a;
		
		literka[(int)(a) - (int)('a')][i % 2] ++;
	}
	
	bool T = 1;
	for(int i = 0; i < N; i++){
		char a;
		cin >> a;
		
		if(literka[(int)(a) - (int)('a')][i % 2] > 0){
			literka[(int)(a) - (int)('a')][i % 2] --;
		}
		else{
			T = 0;
		}
	}
	
	if(T)
		cout << "TAK\n";
	else
		cout << "NIE\n";
	return 0;
}