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#include <bits/stdc++.h>
#define pb push_back
#define f first
#define s second
#define all(x) x.begin(), x.end()
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
int ile[30][2];
int main(){
	std::ios::sync_with_stdio(false); 
	cout.tie(0);
	cin.tie(0);
	int n;
	cin >> n;
	string a, b;
	cin >> a >> b;
	for (int i = 0; i < n; i ++) {
		ile[a[i] - 'a'][i & 1] ++;
	}
	for (int i = 0; i < n; i ++) {
		if (!ile[b[i] - 'a'][i & 1]) {
			cout << "NIE\n";
			return 0;
		}
		ile[b[i] - 'a'][i & 1] --;
	}
	cout << "TAK\n";
	return 0;
}