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#include<iostream>

using namespace std;

int main(){
	int n;
	cin >> n;
	string one;
	string two;
	cin >> one >> two;
	int even[26] = { };
	int odd[26] = { };
	for(int i=0; i<n; i++){
		if(i%2==0){
			even[one[i]-97] += 1;
			even[two[i]-97] -= 1;
		}
		else{
			odd[one[i]-97] += 1;
			odd[two[i]-97] -= 1;
		}
	}
	int good=0;
	for(int i=0; i<26; i++){
		if((even[i] != 0) || (odd[i] != 0)){
			good = 1;
			break;
		}
	}
	if(good==0){
		cout << "TAK\n";
	}
	else{
		cout << "NIE\n";
	}

}