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#include <bits/stdc++.h>
using namespace std;
 

 
 
int main(){ 

	
	int n;
	
	cin >> n;
	
	
	string a, b;
	cin >> a;
	cin >> b;
	
	vector<vector<int>> T(27, vector<int>(2));
	
	for(int x = 0; x < n; x ++){
		T[a[x] - 'a'][x%2]++;
		T[b[x] - 'a'][x%2]--;
	}
	
	bool good = true;
	
	for(int x = 0; x < 27; x ++){
		if(T[x][0] != 0 or T[x][1] != 0){
			good = false;
			break;
		}
	}
	
	
	if(good)
		cout << "TAK\n";
	else
		cout << "NIE\n";
 	
 	
 	
 }